Session 138 Oculoplastics
Transcription
Session 138 Oculoplastics
ARVO 2016 Annual Meeting Abstracts 138 Oculoplastics Sunday, May 01, 2016 1:30 PM–3:15 PM Exhibit/Poster Hall Poster Session Program #/Board # Range: 676–722/B0175–B0221 Organizing Section: Eye Movements/Strabismus/Amblyopia/NeuroOphthalmology Program Number: 676 Poster Board Number: B0175 Presentation Time: 1:30 PM–3:15 PM Transient Dry Eye Following the Fasanella-Servat Operation in the Early Postoperative Period Christopher Lo1, 2, Carisa Petris1, 3, Richard Lisman1, 3. 1Department of Ophthalmology, NYU, New York, NY; 2Department of Ophthalmology, Manhattan Eye, Ear, and Throat Hospital, New York, NY; 3Institute of Reconstructive Plastic Surgery, NYU, New York, NY. Purpose: The Fasanella-Servat levator resection is a popular, less invasive ptosis repair that involves excision of tarsus and conjunctiva from a posterior approach. The aim is to identify if the amount of tissue excised during a Fasanella-Servat procedure correlates with increased early postoperative dry eye. Methods: An IRB approved retrospective review of a surgeon’s experience over a five-year period was performed. Data from pre and postoperative photographs, operative reports, and postoperative visits was analyzed. Small excision was defined as less than 2 mm tarsus removed, moderate excision was between 2 and 4 mm, and large excision was 4 mm or more removed. Postoperative dry eye was defined as subjective complaints, excessive tearing, foreign body sensation, or use of supplemental lubrication during the first postoperative month with sutures removed and the tarsoconjunctival incision well healed. Results: In total, 51 patients and 99 eyes were included. Thirty-six (70.5%) of patients were female. Mean age was 68, SD 15.5. Forty-six (90.3%) patients were Caucasian. Average follow up time was 6.9 months, SD 1.4. Forty-one (41.4%) eyes had small, 41 (41.4%) had moderate, and 17 (17.2%) had large corrections. In the group undergoing small excision, dry eye increased from 31.7% to 46.3% in the first postoperative month, without significance (p=0.085). Eyes with moderate correction had increased postoperative dry eye from 12.2% to 51.2% (p<0.05). Eyes undergoing large corrections had increased dry eye from 11.8% to 58.8% (p<0.05). Despite transient increases, only 3 (5.9%) patients had significant dry eye requiring use of ocular lubricants after the early postoperative period. Conclusions: Dry eye following ptosis repair may be caused by increased evaporative losses, alteration of blink, incomplete closure, injury to accessory lacrimal glands, or decrease of meibomian glands or mucin-secreting conjunctiva. Despite these risks, there was not a significant correlation with dry eye with small corrections. In moderate and large ptosis corrections, there was increased early postoperative dry eye, which was managed with short-term lubricants. Changes in palpebral height, tear composition, and hyperawareness of symptoms may play a role in the transient increase of dry eye symptoms, which resolved after orbicularis contraction frequency and excursion returned by the third postoperative month. Commercial Relationships: Christopher Lo, None; Carisa Petris; Richard Lisman, None Program Number: 677 Poster Board Number: B0176 Presentation Time: 1:30 PM–3:15 PM Comparative Ocular Effects of Topical Epinephrine Versus Phenylephrine in Ptotic and Non-ptotic Subjects Philip Ngai, Jeremiah Tao. Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA. Purpose: Injected 1% lidocaine with epinephrine 1:100,000 (LE100), commonly used in blepharoptosis surgery, may elevate the upper eyelid through sympathetic effects on Müller’s muscle (Trans Am Ophthalmol Soc. 1996;94:165-73) and can also induce pupil dilatation. Such stimulation of sympathetic pathways may affect intraoperative assessment during ptosis surgery. Exposure of the ocular surface to LE100 can occur during ptosis repair, though the effects have not been described. Herein we compare the effect of topical LE100 and phenylephrine on upper eyelid position and pupil size. Methods: Upper eyelid margin reflex distance (MRD-1) and pupil diameter were measured at baseline and 5 minutes after application of topical LE100 in one eye of 14 non-ptotic and 10 ptotic patients. Measurements were obtained by digital photography with each subject’s head and eyes in primary position. After >48 hours each eye was exposed to topical phenylephrine 2.5% and the same measurements were obtained. Results: Topical LE100 did not produce an increase in mean MRD-1 (p>0.05). Conversely, 19/24 eyes (13 non-ptotic, 6 ptotic) exhibited a significant increase (p<0.01) in MRD-1 (mean 0.59 mm) after application of phenylephrine. Change in MRD-1 was significantly greater (p<0.01) after exposure to phenylephrine than to LE100. 5/24 eyes (1 non-ptotic, 4 ptotic) did not exhibit an increase in MRD-1 in response to phenylephrine; these eyelids also did not elevate in response to LE100. Average pupil size increased 0.24 mm (p=0.013) after exposure to phenylephrine, and 0.27 mm (p<0.01) after instillation of LE100. The effect on pupil diameter was statistically similar between the two solutions (p>0.05). Conclusions: Topical LE100 and topical phenylephrine had similar effects on pupil size, but not on MRD-1. The measurable response of the iris dilator muscle was not coupled with a statistically significant response of Müller’s muscle. These data may have implications on intraoperative measurements recorded during ptosis surgery. Importantly, a surgeon should not presume there is elevation of the upper eyelid when pupil dilatation is noted after eye exposure to LE100. Commercial Relationships: Philip Ngai, None; Jeremiah Tao, None Program Number: 678 Poster Board Number: B0177 Presentation Time: 1:30 PM–3:15 PM Tarsal switch to correct severe neurogenic or myogenic ptosis Roberta L. Meneghim1, Lucieni C. Ferraz2, Alicia Galindo3, 4, Rajiv Khandekar3, Silvana A. Schellini3, 1. 1Ophthalmology Department, Universidade Estadual Paulista - UNESP, BOTUCATU, Brazil; 2Hospital Estadual de Bauru, FAMESP, Bauru, Brazil; 3King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia; 4Department of Ophthalmology, Complejo Asistencial de Palencia, Palencia, Spain. Purpose: To report the tarsal switch procedure to correct severe neurogenic or myogenic ptosis with poor levator function (< 4mm) and Bell’s phenomenon absent. Methods: Eleven patients (seven male and four female) with myopathic or neurogenic ptosis treated at the Faculty of Medicine of Botucatu – UNESP - Brazil and at King Khaled Eye Specialist Hospital – Riyadh – Saudi Arabia underwent to surgery to correct palpebral ptosis using the tarsal switch procedure between the years These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts 2012 to 2015. Complete eye examination was performed, including margin reflex distance (MRD), palpebral fissure, levator function, extraocular motility and Bell’s phenomenon. Results: Surgeries were performed in 18 lids of 11 patients. Median age of the patients at the time of the surgery was 57 years (Minimum=29; Maximum=86). Seven (64%) were males and four (36%) females; four had unilateral ptosis and seven, bilateral; nine patients had myogenic and two neurogenic ptosis. All patients showed improvement of head position after surgery. The MRD before surgery was 0 mm and after surgery was 1.0mm, with significance (Wilcoxon p = 0.001). The median of palpebral fissure before surgery was 2 mm and after surgery, 7 mm with significance (Wilcoxon p < 0.001). Conclusions: Tarsal switch procedure constitutes an efficient alternative proposition to correct severe ptosis with poor levator function and negative Bell’s phenomenon and can be performed decreasing the eye exposure risk. Commercial Relationships: Roberta L. Meneghim, None; Lucieni C. Ferraz, None; Alicia Galindo, None; Rajiv Khandekar, None; Silvana A. Schellini, None Program Number: 679 Poster Board Number: B0178 Presentation Time: 1:30 PM–3:15 PM Amyloidosis Masquerading as Unilateral Ptosis Maria M. Choudhary, Rao Chundury, Priyanka Kumar, Julian Perry. Cole Eye Institute, Cleveland Clinic Foundation, Cleveland, OH. Purpose: We report 2 cases of amyloidosis masquerading as unilateral ptosis. To the author’s knowledge these are the first 2 cases in which a diagnosis of amyloidosis was made from isolated unilateral ptosis without any other clinical signs. Methods: Case 1 is a 34 year old woman with a history of monocular strabismus surgery of the left eye combined with left upper blepharoplasty and external ptosis repair 4 years prior to her presentation for persistent droopy left upper eyelid (Figure 1). MRD was 4mm on the right and 2mm on the left. Levator function was 12mm on both sides and there were no conjunctival abnormalities on slit lamp examination. During a modified conjunctivo-mullerectomy ptosis repair, the posterior superior palpebral conjunctival tissue was found to be necrotic and friable upon double eversion. The tissue was biopsied and demonstrated amyloid deposition with positive congo red staining (Figure 2). Systemic work up was negative. Case 2 is a 74-year old man with a history of right upper eyelid ptosis with MRD of 2mm on the right and 3.5mm on the left. Just as in case 1 the patient had no other periorbital or conjunctival abnormalities. During double eversion for right conjunctivo-mullerectomy a friable mass was noted deep within the superior conjunctival fornix. Biopsy revealed amyloid dispersed throughout the tissue, with a positive Thioflavin stain. Systemic work up was negative for other systematic disease. Results: Only 4% of head and neck amyloid involve the orbit and the vast majority of periorbital cases involve the conjunctiva and eyelid. Periorbital signs commonly seen include conjunctival deposits or soft tissue nodular deposits. Classically, eyelid amyloid implies systemic disease, while conjunctival amyloid suggests no systemic involvement. Ptosis can be a presenting sign of amyloidosis but it is almost always associated with other signs or symptoms. Myogenic infiltration of the levator muscle has been reported in one patient with amyloid who underwent a levator resection. Our patients underwent mullerectomy hence no levator specimens were available for review. Conclusions: These are the first two cases to describe amyloidosis masquerading as isolated ptosis without any other signs. Eyelid eversion during pre-op evaluation and careful examination during double eversion at the time of mullerectomy surgery may help in detecting any unusual entities such as amyloidosis. Commercial Relationships: Maria M. Choudhary, None; Rao Chundury, None; Priyanka Kumar, None; Julian Perry, None Program Number: 680 Poster Board Number: B0179 Presentation Time: 1:30 PM–3:15 PM Entropion and Ectropion Patient Characteristics and Outcomes: A Retrospective Chart Review Annie Wu1, Connie Wu1, Philip R. Rizzuto2. 1Ophthalmology, Warren Alpert Medical School of Brown University, Providence, RI; 2 Ophthalmic Plastic Surgery, Warren Alpert Medical School of Brown University, Providence, RI. Purpose: To describe patient characteristics and outcomes after entropion and ectropion surgical repair. Methods: A retrospective chart review was performed of all patients who underwent entropion and/or ectropion repair within a 2-year interval (2013-2015) in the practice of one surgeon (PRR). Data included patient’s age, gender, surgical indication, medical comorbidities, diagnosis, procedure(s) performed, time interval from surgery to follow-up appointment, and postoperative complications. Results: A total of 61 entropion repairs and 112 ectropion repairs were performed on 122 patients. The patients included 61 women and 61 men. Average age was 76.49 years (women 77.33, men 75.65). Of the 50 patients with entropions, 38% were men and 62% were women; average age was 77.72; 12 patients (24%) had bilateral entropions. Of the 80 patients with ectropions, 58.75% were men and 41.25% were women; average age was 76.35; 33 patients (41.25%) had bilateral ectropions. Entropion was more common in women and ectropion was more common in men (p=0.02). Bilateral ectropion was more commonly observed than bilateral entropion (p=0.04). There was no statistical difference in age between the entropion and ectropion groups (p=0.52). A total of 8 patients (6.56%) had entropion of one eye and ectropion of the other. No intraoperative complications were reported. Average postoperative follow-up was 48 days. Over the 2 year period, recurrent ectropion was noted in 6 cases. No recurrences were reported in patients receiving entropion repair. Recurrence occurred less frequently in patients receiving entropion repair (p=0.03). These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts Conclusions: Entropion was found to be more common in women and ectropion more common in men. Bilateral disease was observed more frequently in patients with ectropion. A considerable proportion of patients had a diagnosis of entropion of one eye and ectropion of the other. Recurrence was more common among patients undergoing ectropion repair. Commercial Relationships: Annie Wu, None; Connie Wu, None; Philip R. Rizzuto, None Program Number: 681 Poster Board Number: B0180 Presentation Time: 1:30 PM–3:15 PM Quality of life assessment after entropion repair Yan Tong Koh1, Philemon Keqin Huang1, Eugenie Wei Ting Poh1, Chee Chew Yip2, 1. 1Ophthalmology, Tan Tock Seng Hospital, Singapore, Singapore; 2Ophthalmology and Visual Sciences, Khoo Teck Puat Hospital, Singapore, Singapore. Purpose: Lower lid involutional entropion is a common eyelid malposition. Few studies have analysed the quality of life (QOL) in patients after lower lid entropion surgery (LLES). We thus studied the effect of LLES on the QOL as well as factors associated with a poorer post-operative QOL. Methods: Consecutive patients from 2 centers who underwent LLES by a single surgeon in 2004 – 2007 were recruited. LLES was defined as lower eyelid retractor repair alone or with additional lateral tarsal strip (LTS). The EuroQol-5 Dimension (EQ-5D), EuroQol-Visual Analogue Scale (EQ-VAS) and Utility Value (UV) questionnaires were administered via a phone interview by a single interviewer after the patient underwent LLES. The UV score were derived using the time tradeoff (TTO) and standard gamble (SG). TTO was based on two hypothetical questions: how long they expected to live (x years) and how much time they would be willing to trade off (y years) in return for improvement in their pre-operative lower eyelid position and symptoms. The value was derived by 1-y/x. SG was based on the patient’s perception of the highest risk of blindness (z) they would be willing to accept if there was another technology that could possibly permanently improve pre-operative eyelid conditions and symptoms, but which success of the technology was not guaranteed. The value was derived by 1-z. Results: 61 eyelids of 61 patients were evaluated. The mean age was 76.9 ±10.1 years old. The mean EQ-5D, EQ-VAS and TTO and SG scores are 90.8 ± 16.7, 74.8 ± 14.2, 0.8 ± 0.2 and 0.9 ± 0.07 respectively. There were no significant factors on univariate analysis of EQ-5D scores. Multivariate analysis showed the mean EQ-VAS score for patients who underwent additional LTS was 10.2 (95% CI=3.4-17.1, p=0.004) lower than patients who underwent isolated retractor repair. The mean EQ VAS score for patients with bilateral and recurrent entropion was 10.8 (95% CI=3.8-17.9, p=0.005) and 27.1 (95% CI=8.4-45.7, p=0.01) lower compared to those with unilateral entropion and no recurrence respectively. Patients with a positive family history had a 0.2 (95% CI=0.02-0.3, p=0.03) lower mean TTO score compared to those without. Male gender and higher education level were statistically associated with a lower SG mean score. Conclusions: Significant factors associated with poorer QOL include male gender, higher education level, positive family history, bilateral entropion, recurrent entropion and additional LTS. Commercial Relationships: Yan Tong Koh, None; Philemon Keqin Huang, None; Eugenie Wei Ting Poh, None; Chee Chew Yip, None Program Number: 682 Poster Board Number: B0181 Presentation Time: 1:30 PM–3:15 PM Reversible Cicatricial-like Ectropion Related to Epidermal Growth Factor Receptor (EGFR) Inhibitors Stacy Scofield-Kaplan, Bryan Winn. Ophthalmology, Columbia University, Harkness Eye Institute, New York, NY. Purpose: The management of cicatricial-like ectropion resulting from epidermal growth factor receptor (EGFR) inhibitors is unclear. In the few published case reports, the offending EGFR inhibitor has been stopped and the patient has either been maintained off that medication or has undergone surgical repair with resumption of the same EGFR inhibitor. Methods: We retrospectively reviewed one physicians private practice and found two patients who developed bilateral cicatriciallike ectropion following use of an EGFR inhibitor. Results: The first case involves bilateral ectropion of the lower eyelids with anterior lamellar contraction and bilateral keratoconjunctivitis following panitumumab infusions. The patient was treated with temporary suspension of panitumumab infusions with concomitant medical management with oral doxycycline 100mg twice daily, maxitrol ophthalmic ointment twice daily to the eyelids, and artificial tears four times a day to both eyes. The bilateral ectropions resolved and the patient subsequently restarted panitumumab infusions without ophthalmic complications (Figure 1AB). The second case involves the development of bilateral ectropion of the lower eyelids in the setting of cituximab infusions for recurrent squamous cell carcinoma of the mandible. She was maintained on cituximab at the same infusion frequency of every two weeks with institution of doxycycline 100mg twice daily, fluorometholone ointment to the eyelids four times a day, and artificial tears four times a day. Four months later she had complete resolution of the right lower lid ectropion and almost complete resolution of the left lower lid ectropion (Figure 2AB). Conclusions: It is still unclear what the optimal treatment regimen is for lower lid ectropion related to EGFR inhibitors. While the first case had resolution of the bilateral lower lid ectropion, it is unclear whether this was from discontinuation of the panitumumab infusions or from use of oral doxycycline with steroid ointment to the lower eyelids. However, the second case may provide support for the use of oral doxycycline and steroid ointment to the eyelids prior to discontinuation of the offending EGFR inhibitor, given the successful outcome without alteration of the cituximab infusions. Additional cases are necessary to determine if this is a successful means of treating bilateral lower lid ectropion from EGFR inhibitors. These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts Purpose: Ectropion of the eyelid can lead to skin retraction, stenosis of lacrimal point, chronic watering, visual discomfort or low visual acuity, mostly when it occurs with ectropion of lacrimal point. The objective of the study is to compare two surgical strategies for eyelid ectropion combined with ectropion of the lacrimal point. Methods: We included all consecutive patients who underwent eyelid ectropion surgery in our department from Oct 2014 to Oct 2015. The first procedure is lateral tarsal strip alone (group 1); the second one is lateral tarsal strip with three snips with or without diamond-shaped resection (group 2). The authors focused on the alteration of the quality of life related to watering, before and after operation. Quality of life related to discomfort due to watering was evaluated before and after surgery using a questionnaire. Informations have been gathered via phone with a ten items questionnaire, each item is worth 0 (no or minim discomfort due to watering) or 1 (discomfort due to more than moderated watering). Results: Twenty-two eyelids from eighteen patients were included, eleven in group 1 and eleven in group 2. Average age was 79 ± 11 year-old in group 1 and 80 ± 9 in group 2. The five more relevant items were: reading capacity, watching TV, outdoor activities, social interaction and general well being. For reading: respectively in group 1 and 2, 82 % and 91 % of the patients were discomfort before surgery while 18 % and 0 % after surgery. For watching TV: 82 % and 91 % before surgery while 9 % and 9 % after. For outdoor activities: 91 % and 100 % before surgery while 0 % and 0 % after. For social interaction: 80 % and 90 % before surgery while 0% and 0% after surgery. For global well being, respectively 90 % and 70 % before surgery, while 0 % and 0% after surgery. Conclusions: Our study proves effectiveness of both surgery strategies to improve patients’ discomfort due to watering. Contrary to our initial assumption, both strategies lead to similar results, which would be in favor of a surgery as little invasive as possible. A larger sample size will be necessary to demonstrate any superiority of lacrimal point surgery. Commercial Relationships: Alix EHRHARDT, None; Oualid Guechi, None; Mohamed Zaidi, None; Louis Lhuillier, None; Naïla Houmad, None; Maxime SOT, None; adina agapie, None; piotr krawczyk, None; Huong Duong Nguyen Viet, None; Jean-Marc Perone, None; Nadia OUAMARA, None Commercial Relationships: Stacy Scofield-Kaplan, None; Bryan Winn, None Program Number: 683 Poster Board Number: B0182 Presentation Time: 1:30 PM–3:15 PMComparison between two surgical methods for eyelid ectropion: tarsal strip alone versus tarsal strip with punctoplasty (three snips with or without diamondshaped resection). Alix EHRHARDT1, Oualid Guechi1, Mohamed Zaidi1, Louis Lhuillier1, Naïla Houmad1, Maxime SOT1, Adina Agapie1, Piotr Krawczyk1, Huong Duong Nguyen Viet2, Jean-Marc Perone1, Nadia OUAMARA1. 1ophthalmology, Regional hospital center, Mercy hospital, METZ cedex 03, France; 2University of Medicine and Pharmacy of Ho Chi Minh City, Ho Chi Minh City, Viet Nam. Program Number: 684 Poster Board Number: B0183 Presentation Time: 1:30 PM–3:15 PM SURGICAL OUTCOMES OF PORCINE ACELLULAR DERMIS GRAFT IN SOCKET AND EYELID RECONSTRUCTION: A COMPARISON WITH ORAL MUCOSAL GRAFT Livia Teo1, 2, Chang Yeom Kim2, Dong Kyu Kim2, Jin Sook Yoon2. 1 Singapore National Eye Centre, Singapore, Singapore; 2Yonsei University, Severance Hospital, Seoul, Korea (the Republic of). Purpose: To compare the efficacy of the Permacol™ graft with autologous buccal mucosal graft in socket and eyelid reconstruction, with emphasis on the postoperative vascularization and fibrosis of each graft. Methods: This was a retrospective comparative study. Ten patients underwent Permacol™ graft reconstruction and 44 patients underwent buccal mucosal graft reconstruction. The time necessary for the graft surface to be completely vascularized and the fornix depth of the conjunctival sac in anophthalmic patients was measured. Results: All ten patients in the Permacol group had unilateral contracted anophthalmic sockets. Seven eyelids (70%) in the anophthalmic socket group had a good outcome with improvement in lower eyelid position and prosthesis retention. Nine out of ten eyelids (90%) in this group showed complete vascularization of These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts the graft with minimal fibrosis at 2.6± 1.9 months postoperatively, while the grafted buccal mucosa was fully vascularized at 1.1± 0.3 months postoperatively (P< 0.01). Postoperative fornix depth in the Permacol™ group was 9.1 ± 2.2 mm compared to14.9 ± 4.5 mm in the buccal mucosal graft group (P< 0.01). Conclusions: The Permacol™ graft can be a useful spacer graft material in anophthalmic socket and eyelid patients. It takes longer to vascularize and undergoes greater graft shrinkage with time when compared to buccal mucosal graft. Commercial Relationships: Livia Teo, None; Chang Yeom Kim, None; Dong Kyu Kim, None; Jin Sook Yoon, None Program Number: 685 Poster Board Number: B0184 Presentation Time: 1:30 PM–3:15 PM Geometry of the Blepharoplasty Incision Sagar Y. Patel, Ronald Mancini. Ophthalmology, University of Texas Southwestern Medical Center, Dallas, TX. Purpose: Our study evaluted the affects of the blepharoplasty incision and its result on eyelid aesthetics, specifically eyebrow and eyelid positioning, which both play a pivotal role in facial beauty, perception of aging, and patient satisfaction. Methods: This was a prospective study that included individuals undergoing upper lid blepharoplasty. Patients were excluded if they had eyelid ptosis and/or brow ptosis repair. Standard frontal plane full face digital photographs before and after surgery were obtained of the subjects with eyes open and closed. Patients were analyzed in two cohorts depending on timing of post-operative evaluation, 6-weeks or 3-months. Every patient had an operative photograph with their eyes closed outlining the blepharoplasty incision. Images were processed using ImageJ software (v1.48) developed by the National Institute of Health. The measurements examined before and after surgery were Brow Position Index (Image 1), Palpebral Fissure, Margin-Reflex Distance-1, Margin-Reflex Distance-2, and Eyelid Skin Surface Area (Image 2). The measurements examined at the time of surgery were Operative Skin Surface Area, Operative Superior Distance, and Operative Inferior Distance. A paired t-test of each measurement was performed to evaluate differences before and after surgery in each cohort. Results: The average age was 67.4 years. The 6-week cohort revealed a statistically significant increase in margin fold distance and decrease in eyelid surface area as would be anticipated. The differences in the margin fold distance and eyelid surface area remained statistically significant in the 3-month cohort. The 3-month cohort also revealed statistically significant increases in MRD1 and lowering of brow position. Statistical analysis evaluating the blepharoplasty incision and its distance from superior and inferior eyelid landmarks yielded no statistically significant differences between pre- and post-operative measurements at 6 weeks or 3 months. Conclusions: At 3 months, we found statistically significant changes in brow position, MRD1, margin fold distance, and eyelid surface area. Minor changes in the blepharoplasty incision did not affect the eyelid or eyebrow position. These findings will help in educating patients and setting expectations, particularly regarding lowering of brow position and increase in MRD1. Minor adjustments can be made to the shape of the blepharoplasty incision without significantly impacting eyelid or eyebrow position. Commercial Relationships: Sagar Y. Patel, None; Ronald Mancini, None Program Number: 686 Poster Board Number: B0185 Presentation Time: 1:30 PM–3:15 PM Immortalization of Human Lacrimal Epithelial Cells Marwan Ali, Dhara Shah, Zeeshan Pasha, Vinay K. Aakalu. Department of Ophthalmology, University of Illinois at Chicago, Chicago, IL. Purpose: Purpose: Study of human lacrimal epithelial cell biology is limited by poor access to tissue and difficulty with maintaining primary cultures. A better understanding of lacrimal epithelial biology would advance efforts to develop treatments for dry eye disease and other lacrimal gland diseases. In this study, we utilized viral vectors expressing hTERT to develop an immortalized human lacrimal epithelial cell line. Methods: Methods: Primary human Lacrimal Epithelial (hLE) cells from passage 3 to 5 were immortalized using Lentiviral vectors expressing GFP-tagged hTERT gene. Cultured primary hLE cells were transfected with pLenti-GIII-CMV-hTERT-GFP-2A-Purovirus at Multiplicity Of Infection (MOI) of 1, 1.5 and 2 in the presence of 0.8ug/ml Polybrene. The next day, the viral supernatant was removed and replaced with fresh complete HepatoStim growth medium. After three days, 10ug/ml Puromycin Dihydrochloride was added to medium for selection of immortalized hLE cells. Immortalized hLE cells were then viewed using bright field and fluorescent microscopies to detect GFP signal of transfected hLE cells. Successful transfection of different hLE cells from the different passages was analyzed using RT-PCR and fluorescence microscopy. GFP labeled cells were selected using FACS and subcultured. Isolated cells were passaged and followed for a period of 100 days. RT-PCR and immunofluorescence analysis were conducted to These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts evaluate lacrimal epithelial phenotype and telomerase activity for 20 passages. Results: Results: Successful immortalization of human lacrimal epithelial cells using a lentiviral hTERT vector with GFP reporting was demonstrated through maintenance of epithelial cells through multiple passages, evidence of integration of the viral vector, stable expression of GFP and maintenance of lacrimal epithelial gene expression patterns and immunophenotyping. Conclusions: Conclusion: We have successfully developed an immortalized human lacrimal epithelial cell line which can be used for future study in developing cell based therapies for dry eye disease. Immortalized Human Lacrimal Epithelial Cells Passage5 (MOI 1) Immortalized Human Lacrimal Epithelial Cells Passage3 (MOI 1.6) Commercial Relationships: Marwan Ali, None; Dhara Shah, None; Zeeshan Pasha, None; Vinay K. Aakalu, None Support: NIH—NEI Grant (K08EY024339), a seed grant from Illinois Society to Prevent Blindness, a Research Grant from Midwest Eye Banks, a Grant-in-Aid from Fight for Sight and Departmental Support through an NIH-NEI Core grant (2P30EY001792-36A1) and an Unrestricted Grant from Research to Prevent Blindness (NY,NY). Program Number: 687 Poster Board Number: B0186 Presentation Time: 1:30 PM–3:15 PM Targeted Endoscopic Dacryocystorhinostomy for Acquired Nasolacrimal Duct Obstruction Paul Petrakos1, Ashutosh Kacker2, Joshua I. Levinger2, Gary Lelli1. 1 University Eye Clinic, Weill Cornell Medical College, New York, NY; 2Otolaryngology, Weill Cornell Medical College, New York, NY. Purpose: To evaluate the improvement in epiphora in patients with acquired nasolacrimal duct obstruction (NLDO) following targeted (inferior meatal) endoscopic dacryocystorhinostomy (EndoDCR). Methods: A retrospective study of 9 eyes in 8 patients (n=9) who were surgically treated for acquired NLDO using targeted (inferior meatal) EndoDCR. Patients were included in the study if they had at least 3 months of follow-up. Their final visit was used to determine success. Patients were classified as having full success (complete absence of tearing in normal conditions, no recurrence of infection and absence or minimal reflux on lacrimal irrigation), partial success (improved tearing compared with preoperative tearing, but not resolved with partial or complete irrigation), or complete failure (anatomical failure with persistent/recurrent tearing). Results: Mean follow-up time for the 9 subjects was 8.8 months (SD 6.6). At least partial success was achieved in 7 of 9 subjects (78%). Full success was found in three eyes, partial success in four eyes, and complete failure in two eyes. There were no incidences of dacryocystitis, punctal erosion from silicone tubing, or canalicular obstruction. One of the complete failure patients had previous EndoDCR. The other complete failure patient underwent septoplasty at the time of the targeted EndoDCR and had a history of recurrent sinus inflammatory disease. Conclusions: Targeted (inferior meatal) EndoDCR is a less invasive and efficacious modality in the treatment of acquired NLDO in patients that are suffering from epiphora and may be useful in cases of early diagnosis, where the inferior nasolacrimal duct can still be utilized in the repair. Commercial Relationships: Paul Petrakos, None; Ashutosh Kacker, None; Joshua I. Levinger, None; Gary Lelli, None Program Number: 688 Poster Board Number: B0187 Presentation Time: 1:30 PM–3:15 PM Effect of Nunchaku-Style Silicon Tube Intubation in Patients with Lacrimal Duct Obstruction Associated with S-1 Kazuyoshi Ohtomo. Ophthalmology, The University of Tokyo Hospital, Tokyo, Japan. Purpose: To investigate clinical features of lacrimal duct obstruction associated with S-1 (LDOAS) and the prognostic factors of direct silicon tube intubation (DSI) with Nunchaku-style silicon tube. Methods: Of 26 patients (15 males and 11 females), 52 eyes with a LDOAS who had an operation between 2008 and 2014 were evaluated retrospectively. The severity of canalicular obstruction was assigned as a degree of canalicular obstruction. Patients were categorized into an effective group defined as disappearance of epiphora and improvement of lacrimal passage and an ineffective group including re-occlusions and insertion failures which were not able to insert the NST. Results: The mean age was 64.5±7.1(mean±SD). Average followed-up period was 18.1±21.2 months. The mean duration of S-1 administration was 14.0±11.8months. The mean period until symptom appearance was 4.9±3.5 months. The frequency of epithelial disorder of cornea before the treatment was 42%. The S-1 administration was 58%. The obstructed parts including duplication were found in punctum (19%), canaliculous (65%), common canaliculous (13%), lacrimal suc (4%), and nasolacrimal duct (15%). The mean severity of canaliculous obstruction was 3.6±2.3. DSI was effective in 29 eyes (56%). There were significant differences on followed-up period (p=0.0007, Mann-Whitney U test), the duration of S-1 administration (p=0.0041, Mann-Whitney U test), the period until symptom appearance (p=0.0032, Mann-Whitney U test), and the frequency of corneal epithelial disorder (p=0.0240, Fisher’s Exact test) between the effective and the ineffective groups. In the obstructed parts, there were significant differences on canaliculous (p<0.0001, Fisher’s Exact test), common canaliculous (p=0.0064, Fisher’s Exact test), nasolacrimal duct (p=0.0064, Fisher’s Exact test). In the severity of canaliculous, the ineffective group was more severe obstruction than the effective group (p<0.0001, Mann-Whitney U test). In the multiple regression analysis, there was a significant difference on the severity of canaliculous (OR=5.69, p=0.0006, 95%CI=2.5412-18.998). Conclusions: Patients with a LDOAS had mainly canaliculous obstruction (65%). DSI was effective in 29 eyes (56%). Our findings showed that the severity of canaliculous obstruction became the prognostic factor of DSI. Commercial Relationships: Kazuyoshi Ohtomo, Japan society for the promotion of science (F) Support: JSPS KAKENHI grant Number 15K20249 Program Number: 689 Poster Board Number: B0188 Presentation Time: 1:30 PM–3:15 PM Lacrimal tubes in external dacryocystorhinostomy: a method for placement and removal and the incidence of prolapse Seanna R. Grob, Michael Yoon. Ophthalmology, Massachusetts Eye and Ear Infirmary, Boston, MA. Purpose: To report a method of lacrimal tube placement and removal, and the incidence of lacrimal tube extrusion after external dacryocystorhinostomy (DCR). Methods: A retrospective review of 88 patients (96 eyes) that underwent external DCR from 2011-2015 by one surgeon at Massachusetts Eye and Ear Infirmary was conducted. For placement, the Crawford tube was secured using 20 square knots and replaced in the nose. For removal, a 50:50 mix of 0.05% oxymetoxalone and 4% These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts lidocaine was sprayed into the nose and the stent was cut between the puncta. After 5 minutes, the patient blew the affected side of the nose, while occluding the contralateral nare. Endonasal forceps were used to remove the stent if this was unsuccessful. Results: 88 patients (96 eyes) were identified (mean 61 years, 54 female). 15 eyes had one or more episodes of tube extrusion (15.6%). Two eyes had two episodes and three eyes had 3 episodes of extrusion. The mean time after surgery until the first tube extrusion was 34.2 days (median 17 days). The tube was unable to be replaced after extrusion in 4 patients after the first extrusion, 1 patient after the second, and 2 patients after the third extrusion. A total of 21 patients had their tubes removed prior to the usual 3-month period (only 6 were from tube extrusion or 6.2%). Of the six patients whose tubes were out before the 3 months from tube extrusion, only 1 patient did not have post-operative symptom relief. Forty patients were observed using the nose blowing technique. 83% achieved success using this technique with a mean of 1.6 attempts. Of these patients, 30 of them exerted adequate effort with nose blowing. The remainder required forceps for removal, either due to poor effort or failure of the technique. There were no instances of slit puncta or inability to locate/remove the stent. Conclusions: Our method of tube placement and removal showed successful results. Although lacrimal tube extrusion occurred, over half of the displaced tubes were replaced without requiring early tube removal. The success rate of surgery was still high despite tube extrusion and early removal. Forceps and endoscope tube removal was avoided in the majority of patients and no damage to the puncta occurred. Commercial Relationships: Seanna R. Grob; Michael Yoon, None Program Number: 690 Poster Board Number: B0189 Presentation Time: 1:30 PM–3:15 PM The success rate of simultaneous and asynchronous approach of bilateral external dacryocystorhinostomy Silvana A. Schellini, Alberto Galvez, Mohamed Dufaileej, Rajiv Khandekar, Alicia Galindo. Oculoplastic, King Khaled Specialist Eye Hospital, Riyadh, Saudi Arabia. Purpose: Purpose: to determine the success rate of bilateral dacryocystorhinostomies (DCR) using simultaneous and asynchronous approach. Methods: Methods: this retrospective study included patients who underwent bilateral external DCR between January 2010 and August 2015 at King Khaled Eye Specialist hospital. Postoperative success defined as absolute if no tearing bilaterally or partial if tearing in one side only was assessed by subjective (symptoms of tearing) and objective (fluorescein dye disappearance test - FDDT) methods. Statistical analysis was performed applying the Fisher exact test. Results: Results: of 57 patients undergoing DCR 32 (56%) had simultaneous surgeries on both sides while in 25 patients, the surgery was asynchronous. The median duration of follow up was 7 months. The absolute success and partial rate based on subjective method was 43/55 [(78.2% (67.3 – 89.1)]. Partial success was noted in 5/55 (9.1%). Seven (12.7%) patients persisted with tearing on both sides. The objective method (n = 40) showed similar results in patients undergoing simultaneous (71.9%) and asynchronous (80%) DCR (p=0.4). Conclusions: Conclusions: bilateral DCR surgery is useful in patients who have bilateral symptoms of lacrimal obstruction due to blockage of tear ducts and gives promising outcomes. By performing the DCR simultaneously, the success rate is not compromised, and one can rehabilitate patient sooner. Commercial Relationships: Silvana A. Schellini, None; Alberto Galvez, None; Mohamed Dufaileej, None; Rajiv Khandekar, None; Alicia Galindo, None Program Number: 691 Poster Board Number: B0190 Presentation Time: 1:30 PM–3:15 PM Clinical presentation and bacteriology of eyebrow infections: the Massachusetts Eye and Ear experience (2008-2015) Anaïs Carniciu, Ilya Leskov, Jonathan Chou, Suzanne K. Freitag. Ophthalmology, Massachusetts Eye and Ear Infirmary, Boston, MA. Purpose: Characterization of preseptal cellulitis and abscesses of the eyebrow remains limited. A retrospective study was performed to elucidate the clinical history, precipitating human behaviors, and bacteriology of eyebrow infections. Methods: A retrospective chart review was conducted to identify patients with preseptal cellulitis or abscess involving the eyebrow who were treated at Massachusetts Eye and Ear Infirmary between 2008 and 2015. Patient history, ophthalmic examination, and culture results were reviewed to identify characteristics and trends in the clinical presentation and bacteriology of eyebrow infections. Results: 80 patients with eyebrow infections were identified. The median age of patients was 37 years (range 14-67). 49 patients (61.3%) were female, and 31 (38.7%) were male. Of all eyebrow infections, 26 cases (32.5%) were limited to preseptal cellulitis without abscess formation, while the remaining 54 cases (67.5%) presented with eyebrow abscess. Of cases presenting with abscess, 20 were positive for methicillin-resistant Staphylococcus aureus (MRSA); this comprised 39.2% of all culture results. Twelve cases had cultures positive for methicillin-sensitive Staphylococcus aureus (MSSA), which comprised 23.5% of all culture results. Coagulase negative staphylococci (CoNS) were present in 7 eyebrow abscesses, corresponding to 13.7% of culture results. Three patients had a medical history of previous MRSA infection, while 4 patients had prior history of recurrent skin infections (with organisms unknown) elsewhere in the body. Two patients presented with recurrent eyebrow abscess after previous incision and draining. Clinical history was remarkable for eyebrow hair removal (tweezing, waxing, threading, or shaving) in 17 cases (21.3%), manipulation of acne lesions (“popping,” “picking,” or “squeezing”) in 6 cases (7.5%), and both brow hair removal and acne manipulation in 1 case (1.3%). Conclusions: The most frequently isolated organisms in eyebrow infections are MRSA, MSSA, and CoNS, respectively. Human behaviors associated with presentation of preseptal cellulitis and abscesses of the eyebrow include eyebrow hair removal and manual manipulation of eyebrow-localized acne lesions. Given the prevalence of MRSA in the bacteriology of eyebrow infections, empiric antibiotic coverage for MRSA should be strongly considered in any patient with an eyebrow area infection. Commercial Relationships: Anaïs Carniciu, None; Ilya Leskov, None; Jonathan Chou, None; Suzanne K. Freitag, None Program Number: 692 Poster Board Number: B0191 Presentation Time: 1:30 PM–3:15 PM Outcomes of revision conjunctivodacryocystorhinostomy with Jones tubes Bryce Radmall1, Eric Ahn3, Eric Steele2, Roger Dailey2. 1 Ophthalmology, Casey Eye Institute, Beaverton, OR; 2Division of Oculoplastics, Casey Eye Institute, Portland, OR; 3Oculoplastics, Eye Consultants of Northern Virginia, Springfield, VA. Purpose: Determine the success rate of revision conjunctivodacryocystorhinostomy (CDCR) with Jones tubes (JT). Methods: A retrospective chart review was performed identifying those undergoing external and endoscopic CDCR from January 1, These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts 2006 to November 1, 2014. Only those patients having revision CDCR (a patient’s second CDCR), and at least six months follow up were included. The primary outcomes were time to failure of revision CDCRs and the number of subsequent repeat CDCRs needed. Results: A total of 18 eyes from 16 patients met the inclusion criteria. Average patient age was 57.7 years, with nine females and seven males all of whom were Caucasian. There were nine frosted and nine non-frosted JTs placed at the time of each eye’s initial CDCR. 8/9 frosted JTs either migrated in too deeply or were lost in the nose by history. 5/9 non-frosted JTs were lost having completely migrated out, with the remaining 4/9 migrating too deep to replace. Revision CDCR involved the use of fifteen frosted JTs and three non-frosted JTs, with nine patients requiring lysis of scar tissue involving the nasal ostium, three patients needing changes to the trajectory of the CDCR tract, and eight requiring subtotal middle turbinectomy. Six eyes required further CDCR, four requiring one more CDCR and two each requiring three more CDCRs. Average time from revision CDCR to repeat CDCR was 1604.8 (343-4773) days. Kaplan Meier analysis showed 50% of revision CDCR functioning at 10 years postoperatively. Conclusions: Most patients undergoing revision CDCR required no further surgery, although 33% needed at least one or more additional CDCRs and this group as a whole over time may have a higher rate of reoperation. Commercial Relationships: Bryce Radmall, None; Eric Ahn, None; Eric Steele, None; Roger Dailey, None Support: This manuscript was supported in part by an unrestricted grant to Casey Eye Institute from Research to Prevent Blindness, New York, New York. Program Number: 693 Poster Board Number: B0192 Presentation Time: 1:30 PM–3:15 PM Dacryocystectomy: indications and results at tertiary eye hospital of central Saudi Arabia Laryssa K. Veloso3, Alicia Galindo1, 2, Mohamed Dufaileej1, Alberto Galvez1, Rajiv Khandekar1, Silvana A. Schellini1, 3. 1King Khaled Eye Specialist Hospital, Riyad, Saudi Arabia; 2Oftalmologia, Complejo Asistencial de Palencia, Palencia, Spain; 3Oftalmologia, Faculdade de Medicina de Botucatu- UNESP, Botucatu, Brazil. Purpose: This study was done to give evidence about the indication and success of dacryocystectomy (DCT) in a tertiary eye institute. Methods: A retrospective review of all patients who underwent DCT from the Oculoplastic Division of King Khaled Eye Specialist Hospital, Saudi Arabia, from 2008 through July 2015 was done. Demographic data of patients, symptoms related to the lacrimal drainage system before and after surgery and complications were observed. The data was transferred to spreadsheet of SPSS 16 and univariate analysis using parametric and non-parametric methods was done. Results: 47 DCT surgeries were performed in the studied period. The median age of patients was 58.2 years old, 63.8% were female, left side was operated in 60% of patients and 8% undergone to bilateral simultaneous DCT. All the indications for DCT for our patients was chronic dacryocystitis and 23.5% of them had dry eye before surgery. After surgery 8.5% of our patients complains of tearing and only 6.4% complaint about dry eye. Conclusions: The main indication for DCT in our hospital is chronic dacryocystitis. DCT still seems to be a good procedure to treat select patients, mainly elderly with dry eyes. Commercial Relationships: Laryssa K. Veloso, None; Alicia Galindo, None; Mohamed Dufaileej, None; Alberto Galvez, None; Rajiv Khandekar, None; Silvana A. Schellini, None Program Number: 694 Poster Board Number: B0193 Presentation Time: 1:30 PM–3:15 PM Modified canaliculotomy with suture-fixed stent for treatment of canaliculitis Tina H. Chen1, Milap Mehta2. 1Ophthalmology, University of Chicago, Chicago, IL; 2Eye and Vision, Northshore University, Chicago, IL. Purpose: The gold standard surgical treatment of canaliculitis is punctal dilatation and curettage, but may lead to recurrent disease if dacryoliths remain. Canaliculotomy allows direct access, but can lead to scarring, strictures, or dilatation of the canaliculi or punctum. In our study, we conducted a restrospective chart review of 2 patients undergoing modified canaliculotomy with suture-fixed stenting to evaluate its efficacy and ability to maintain patency of the lacrimal system. Methods: Inclusion criteria included chronic canaliculitis with canalicular stenosis proven on probing and irrigation without nasolacrimal duct involvement. Patients with punctal plugs were excluded from the study. Our cohort included 2 patients (2 puncta), including 1 male (Patient 1) and 1 female (Patient 2), ages 71 and 22 years, respectively. Both presented with tearing and purulent discharge which failed conservative treatment. Intraoperatively, each patient received upper and lower punctal dilatation of the affected eyelid. A bowman probe #2 was then placed into the left lower punctum and canalicular system until a “hard stop” was engaged. A #11 blade was used to incise the canaliculus from the punctum towards the common canaliculus. A chalazion curette was then used to express any dacryoliths or foreign bodies. A chalazion clamp was used in a “milking” fashion to ensure no additional foreign bodies remained. Both patients had a lacrimal stent fixed into the punctum with a 6-0 prolene suture and externalized. The stent was then directed along the path of the previously incised canaliculus into the lacrimal sac. The skin was closed with 6-0 chromic sutures over the stent and re-formed canaliculus. The stents were removed after 6 weeks. Results: Both patients underwent uncomplicated stent removal after 6 weeks. Both (100%) had complete resolution of symptoms and maintained patency of the lacrimal system. One patient (50%) developed a small pyogenic granuloma that resolved with conservative treatment. There were no cases of disease recurrence 6 weeks post-operatively. Conclusions: The modified canaliculotomy with suture fixation of a lacrimal stent provides excellent surgical exposure and allows for easy removal of lacrimal foreign bodies. The suture-fixated lacrimal stent is easily placed with the wide surgical exposure. Fixation sutures prevent premature extrusion. These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts Modified canaliculotomy Post op week 6 Commercial Relationships: Tina H. Chen, None; Milap Mehta, None Program Number: 695 Poster Board Number: B0194 Presentation Time: 1:30 PM–3:15 PM Critical exam findings and culture results that correlate with inpatient hospitalization in the setting of Acute Infectious Dacryoadenitis Matthew Zhang2, 1, Sarah Tanaka2, Matthew Hollar2, Viraj Mehta2, Behin Barahimi2. 1Ophthalmology and Visual Sciences, Vanderbilt University, Nashville, TN; 2Ophthalmology, Vanderbilt Eye Institute, Nashville, TN. Purpose: Acute Infectious Dacryoadenitis (AID) is a potentially lifethreatening ophthalmic condition that is understudied. We performed a retrospective, observational clinical study that identified culture results and critical signs on physical examination which correlated with whether patients did or did not require inpatient hospitalization in the setting of AID. Methods: A retrospective chart review was performed of Vanderbilt Hospital records for patients of all ages who carried an ICD9 code of 375.01 (acute dacryoadenitis) between the years 1998 and 2015, and in whom at least 1 year of ophthalmology follow-up was available. A total of 20 patients met entry criteria. Twelve patients with inpatient hospitalization and eight patients treated as outpatients were reviewed. The two-tailed Fisher’s exact test and Chi-squared test were used to draw statistical comparisons between categories of this study. Results: A total of 20 patients with AID were identified. Twelve patients with AID were admitted for inpatient management and intravenous antibiotics. Eight patients were managed on an outpatient basis. Fornix cultures were obtained in thirteen AID subjects. There were six patients that had culture-confirmed Staphylococcus aureus (SA), and another seven patients had mixed flora or no growth. All six SA-positive patients presented with critical signs on examination, defined as purulent discharge and/or extraocular movement deficits. SA culture-positivity correlated with the presence of purulent discharge (p=0.006) and extraocular movement deficits (p=0.02). The likelihood of inpatient hospitalization also correlated positively with the presence of purulent discharge (p=0.0009) and extraocular movement deficits (p=0.0004). Finally, SA culture-positivity correlated with likelihood of inpatient hospitalization (p=0.0419) Conclusions: In patients with AID, our findings suggest that the presence of purulent discharge and extraocular movement deficits correlated with SA culture-positivity. Also, SA culture-positivity, presence of purulent discharge, and extraocular movement deficits each separately correlated strongly with the likelihood of inpatient hospitalization. This is the first study that correlates culture results and critical signs on examination with likelihood of inpatient hospitalization in the setting of AID. Commercial Relationships: Matthew Zhang, None; Sarah Tanaka; Matthew Hollar, None; Viraj Mehta, None; Behin Barahimi, None Support: Research to Prevent Blindness Grant Program Number: 696 Poster Board Number: B0195 Presentation Time: 1:30 PM–3:15 PM Long-term Efficacy of Aluminum Foil Draping Technique in Oculoplastic Surgical Procedures Lauren Cournoyer, Philip R. Rizzuto. Ophthalmic Plastic Surgery, Warren Alpert Medical School Brown University, Providence, RI. Purpose: A retrospective case review, presented at ARVO in 2012, of 294 consecutive patients concluded that an aluminum foil drape was as effective as a standard surgical paper drape at minimizing the risk of wound infection in oculoplastic surgical procedures. The purpose of this retrospective case review is to compare the long-term efficacy of aluminum foil draping technique versus standard surgical paper draping technique at minimizing the risk of wound infection in select oculoplastic surgeries using a larger sample size. The cost of each drape is reported as well. Methods: A retrospective case series of 991 consecutive patients, between the ages 30 and 90, who underwent ectropion or entropion repair, levator resection or advancement, or blepharoplasty by a single surgeon using either an aluminum foil drape (n=748) in an office-based surgery suite or a standard surgical paper drape (n=243) in a hospital-based ambulatory surgery center was performed. The rate of wound infection in the two groups at postoperative days 1, 7, and 10 was evaluated. Statistical analysis (2-sample t test) could not be applied due to the absence of any difference in the data from the two groups. A cost analysis was also performed comparing the two draping techniques. Results: Seven hundred and forty-eight cases (334 blepharoplasty, 283 levator repair/advancement, 14 ectropion repair, 117 entropion repair) were performed in an office-based surgery suite using an aluminum foil drape. Two hundred and forty-three cases (71 blepharoplasty, 48 levator repair/advancement, 73 ectropion repair, 51 entropion repair) were performed in a hospital-based ambulatory surgery center using a standard surgical paper drape. There was These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts no incident (0) of wound infection in the 991 cases reviewed at postoperative day 1, 7, or 10. There was no difference in the rate of wound infection between the two groups. The cost per surgical procedure was $0.63 for the aluminum foil drape and $28.25 for the standard surgical drape. Conclusions: Aluminum foil draping technique continues to be as effective as standard surgical draping technique at minimizing the risk of wound infection in oculoplastic surgical procedures in the outpatient setting. The cost per surgical procedure of the aluminum foil drape is significantly less than the cost of the standard surgical paper drape. Commercial Relationships: Lauren Cournoyer, None; Philip R. Rizzuto, None Program Number: 697 Poster Board Number: B0196 Presentation Time: 1:30 PM–3:15 PM BI-INSTITUTIONAL RETROSPECTIVE REVIEW ON THE DEMOGRAPHICS AND BASIC CLINICAL PRESENTATION OF HIDROCYSTOMAS Michelle M. Chang1, Paul Petrakos2, Mei Zhou1, Benjamin Levine2, Gary Lelli2, Pete Setabutr1. 1University of Illinois at Chicago, Chicago, IL; 2Weill Cornell Medical College, New York, NY. Purpose: Hidrocystomas are benign, cystic lesions of eccrine and apocrine sweat glands. The literature on hidrocystomas is sparse, consisting of a handful of case reports and limited retrospective reviews. This is the first known bi-institutional, retrospective, chart review aimed to elucidate the demographics and basic clinical presentation of hidrocystomas. Methods: Medical records of adult patients with a pathological diagnosis of hidrocystoma from September 1, 2008 to August 1, 2015 in the Oculoplastic and Reconstructive Surgery Service at the Illinois Eye and Ear Infirmary (UIC) and Department of Ophthalmology of Weill Cornell Medical College (Cornell) were reviewed. Children under the age of 18 were not included. Data collection included: gender, race, age at diagnosis, laterality, location, total number of lesions, and recurrence. Results from both institutions were compared against each other and as a whole. Results: A total of 107 patients were diagnosed with hidrocystoma on pathology. The mean age of diagnosis was 56 years (22-85). Hidrocystomas were diagnosed in 69 (64.4%) females and 38 (35.5%) males. Lesions were most commonly found in African American (37.4%), Caucasian (30.8%), and Hispanic (16.8%) patients combined across the two institutions with different patient populations. Lesions were largely unilateral (74.8%) and found on the lower lid (38.6%), lateral canthus (31.2%), upper lid (17.7%), and medial canthus (12.6%). Recurrences were seen in 2.3% of lesions. The majority of recurrences occurred in patients who identified their race as Hispanic (2/5) and Caucasian (3/5). Recurrences were seen in 2 males and 3 females. Conclusions: Apocrine and ecccrine hydrocystomas may be more common in female, African American, Caucasian, and Hispanic patients, presenting most commonly in adults in their mid-fifties. Lesions tend to be unilateral with lower lid lesions being the most prevalent location and medial canthus lesions being the least prevalent location for lesion growth. Recurrences may be most common in Hispanics and Caucasians and less common in African Americans. Although a precise recurrence rate cannot be determined at this time, our data suggests that the recurrence rate is low with current excisional methods. Commercial Relationships: Michelle M. Chang, None; Paul Petrakos, None; Mei Zhou, None; Benjamin Levine; Gary Lelli, None; Pete Setabutr, None Support: Unrestricted departmental grant from the Research to Prevent Blindness Program Number: 698 Poster Board Number: B0197 Presentation Time: 1:30 PM–3:15 PM The Efficacy of Primary Pentagonal Wedge Resection in Achieving Negative Margins in Eyelid Basal Cell Carcinoma Christine V. Nguyen, Giancarlo A. Garcia, Marc Yonkers, Jeremiah Tao. Gavin Herbert Eye Institute, University of California, Irvine, Irvine, CA. Purpose: Typical treatment protocols for eyelid basal cell carcinoma (BCC) include two or more surgical procedures: biopsy for diagnosis followed by tumor resection with intraoperative frozen section or Mohs margin control and then defect reconstruction. Full thickness eyelid sampling obviates the deep margin concern and when gross medial and lateral margins are obtained, we hypothesize a high incidence of complete BCC (negative histologic margins) is achieved on primary resection. We evaluate the efficacy of pentagonal wedge gross tumor resection in achieving negative histopathologic margins on primary resection of small eyelid BCC. Methods: Retrospective review of consecutive nodular eyelid BCC managed with full thickness eyelid excisional biopsy with immediate reconstruction. In all cases, the eyelid was incised in a pentagonal wedge technique with grossly visible full thickness margins around the lesion. Specimen margin status was evaluated on permanent histopathology sections. Charts were reviewed for any adverse events and subsequent related surgical interventions. Results: 36 cases of histopathology-confirmed eyelid BCC were identified (mean age 67.3 ± 2.5 years). The majority (94.4%, p<0.001, Chi square) were completely excised with negative margins These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts on permanent histopathology of the primary resection sample. Eyelid repair was completed immediately after excision in all cases that had short total duration. Incomplete excision with positive margins occurred in two cases (5.6%). These were managed with further tumor resection with intraoperative frozen section margin control and immediate eyelid reconstruction. Mean postoperative follow-up duration was 361 ± 109 days. In the majority of cases with complete excision there was no recurrence (97.1% p<0.001, Chi square). There was one case of recurrence (2.9%) among those with complete excision; this was the only case that required a secondary surgical procedure. There were no intraoperative or postoperative complications. Conclusions: Pentagonal wedge resection of eyelid BCC was associated with a high incidence of negative primary histologic margins and definitive management in one short surgical setting. There was a low rate of recurrence at a mean of 1 year. Primary full thickness gross eyelid resection of lesions highly suspicious for BCC may obviate a need for additional procedures required with incisional biopsy techniques. Commercial Relationships: Christine V. Nguyen, None; Giancarlo A. Garcia, None; Marc Yonkers, None; Jeremiah Tao, None Program Number: 699 Poster Board Number: B0198 Presentation Time: 1:30 PM–3:15 PM Retrospective Chart Review of Vascular Tumors at a Single Academic Institution Anjulie Quick, Thomas Whittaker, Jason Sokol. Ophthalmology, University of Kansas Medical Center, Prairie Village, KS. Purpose: Vascular lesions and malformations of the orbit are a benign but important group of space occupying lesions in the population. In the literature, the incidence of vascular lesions is reported as 13-25% of all orbital tumors with the most common being capillary hemangiomas in children and cavernous hemangiomas in adults. Our goal was to compare the incidence of biopsy confirmed vascular tumors reported in the literature to those at our academic institution and to review the demographics and clinical presentation. Methods: A retrospective, descriptive, chart review was performed after IRB approval. All biopsied/surgically removed orbital lesions treated in our department between 2010 and 2015 were identified by surgical CPT codes. Those patients with vascular tumors were then selected for our study. In each case gender and age of the patients, pathological diagnosis, number of reinterventions and laterality were registered. Results: Two hundred and one biopsied confirmed orbital tumors were identified over a 5-year period. Sixteen cases were identified as vascular tumors constituting 8% of all orbital tumors in this review. The age ranged from 2-65 years old with a median age of 43. The majority (75%) of all vascular tumors were women. The most common presenting complaint was proptosis (56%). The breakdown of the vascular tumors includes: 6 cavernous hemangiomas (37.5%), 2 lymphangiomas (12/5%), 2 solitary fibrous tumors (12.5%), 2 arteriovenous malformations (12.5%), 1 hemangiopericytoma (6.25%), 1 orbital varix (6.25%), 1 capillary hemangioma (6.5%) and 1 Masson’s vegetant intravascular hemangioendothelioma (6.25%). The two most common reasons for surgical intervention were diplopia (31%) and optic nerve compression (31%). Conclusions: Although our study shows that the incidence of vascular tumors is lower than the number reported in the literature, this may be related to the broad and diverse patient population seen at a referral center. It is possible that common tumors are managed in the community or observed for a longer period of time due to their charaterization as benign tumors. Commercial Relationships: Anjulie Quick, None; Thomas Whittaker; Jason Sokol, None Program Number: 700 Poster Board Number: B0199 Presentation Time: 1:30 PM–3:15 PM Outcomes of two surgical techniques for major trichiasis Lucieni C. Ferraz1, Roberta L. Meneghim3, 1, Alicia Galindo2, Ana C. Wanzeler5, Michelli Saruwatari5, Larissa Satto5, Carlos R. Padovani4, Silvana A. Schellini2. 1FAMESP, Bauru, Brazil; 2King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia; 3 Faculdade de Medicina de Botucatu, Botucatu, Brazil; 4Instituto de Biociências, Botucatu, Brazil; 5Faculdade de Medicina de BotucatuUNESP, Botucatu, Brazil. Purpose: To analyze the patient outcomes of two surgical techniques for major trichiasis. Methods: A retrospective chart review was performed of 67 patients (89 eyelids) with major trichiasis who underwent surgical treatment using one of two techniques: Van Millingen (intermarginal split with graft; ISG group) technique or lid anterior lamella resection (ALR group). There were 30 eyelids in the ISG group with mean patient age of 71.8 years and 63.3% were females. There were 59 eyelids in the ALR group with mean patient age of 72.5 years and 52.5% were female. The minimum postoperative follow up was 6 months. Statistical analysis included descriptive measures, Goodman association test for contrasts between and within multinomial populations and non-parametric Mann Whitney test for comparison between groups. P<0.05 was considered statistically significant. Results: The underlying causes of trichiasis were, blepharitis (37.07%), chronic meibomitis (21.3%), multiple causes (20.2%), ectropion (11.2%), actinic keratosis (6.7%) or prior ocular surgery (3.3%). Postoperatively, in the ISG group, there were 20% eyelids with complete success, 50% underwent laser or electrolysis, 16.7% required further surgery and 13.3% were unsuccessful. Postoperatively, in the ALR group there were 47.5% eyelids with complete success, 46.7% underwent laser or electrolysis, 6.8% required further surgery and 5.1% were unsuccessful. There was a higher statistical chance of complete success with ALR (P<0.05). Conclusions: ALR is superior than ISG surgery for major trichiasis. There is a greater chance of success with ALR and it is technically simpler. Commercial Relationships: Lucieni C. Ferraz, None; Roberta L. Meneghim, None; Alicia Galindo, None; Ana C. Wanzeler, None; Michelli Saruwatari, None; Larissa Satto, None; Carlos R. Padovani, None; Silvana A. Schellini, None Program Number: 701 Poster Board Number: B0200 Presentation Time: 1:30 PM–3:15 PM Clinical Features of Graves Orbitopathy Patients with Recurred Orbital Inflammation after Decompression Young Jun Woo, Do Wook Kim, Ji Won Kim, Jin Sook Yoon. Ophthalomology, Yonsei college of medicine, Seoul, Korea (the Republic of). Purpose: To investigate clinical features of Graves orbitopathy (GO) patients with recurred orbital inflammation after decompression. Methods: Ninety-seven patients who underwent orbital decompression because of disfiguring proptosis (n = 60) or orbital congestion including compressive optic neuropathy (ON) (n = 37) were evaluated. Demographics, ophthalmic manifestations, and biochemical parameters were reviewed. Preoperative factors affecting occurrence of orbital inflammation after decompression were investigated with logistic regression analyses. These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts Results: Seventeen patients experienced recurred inflammation of GO after orbital decompression. All had undergone surgery because of orbital congestion or ON. Univariate logistic regression analysis identified current smoking (P = 0.042), modified NOSPECS score (P = 0.013), and presence of ON (P = 0.019) as significant factors for recurred inflammation of GO. Multivariate logistic regression analysis revealed that current smoking (P = 0.022) and presence of ON (P = 0.011) were associated with postoperative recurred inflammation of GO. Conclusions: Orbital inflammation after decompression tends to occur in GO patients with preoperative orbital congestion or ON. The presence of ON and smoking status at the time of surgery were significant positive, independent factors for recurred inflammation of GO in group of orbital congestion or ON. Patients with these factors should be carefully observed for recurrence of orbital inflammation even if GO became inactive after orbital decompression. Commercial Relationships: Young Jun Woo, None; Do Wook Kim, None; Ji Won Kim, None; Jin Sook Yoon, None Program Number: 702 Poster Board Number: B0201 Presentation Time: 1:30 PM–3:15 PM Characterization of patients receiving evisceration in a major metropolitan hospital in Mexico City Miriam G. Arellano, Francisca Zuazo, Martin Gonzalez, ALBERTO ABDALA, Angel Nava, OSIRIS OLVERA-MORALES, JOSE L. TOVILLA CANALES. instituto de oftalmologia conde de valenciana, Mexico, Mexico. Purpose: Currently, evisceration is becoming a useful technique for the removal of the eye content in cases of endophthalmitis, painful blind eye, ocular trauma, among others. We performed a retrospective, observational clinical study to describe and analyze the causes, results and complications of evisceration surgery. Methods: Clinical records of patients undergoing evisceration at Instituto de Oftalmología Conde de Valenciana IAP, between January 2008 and July 2015 were reviewed. Patients who underwent enucleation surgery or evisceration surgery performed in other institution, were excluded. We analyzed gender, age, operative eye, cause of evisceration, preoperative visual acuity, implant used, and complications. Results: A total of 186 eyes were eviscerated during the study period. 53% of the patients undergoing evisceration surgery, were men. The average age was 54 ± 23 years. The right eye was affected in 53% of cases. 79.2% of patients had a vision of No Light Perception in the affected eye and 92% of patients had preoperative pain. The mean preoperative intraocular pressure was 22.17 ± 15.6 mmHg. The most common diagnosis for which evisceration was performed, was endophthalmitis (28%), followed by ocular trauma in 23.12%. 10.8% of the operated eyes were reported to be in phthisis bulbi. In 86.8% of cases, a primary implant was placed. Of these, 34.1% were porous polyethylene. In 7.5% cases, a secondary implant was placed, approximately a month after evisceration surgery in cases of endophthalmitis. 4% of cases had implant extrusion, 75% of them being porous polyethylene. The ocular prosthesis was well tolerated in 91% of cases. Complications were present in 7.5%, being postoperative pain the most common. No cases of sympathetic ophthalmia were reported. Conclusions: In our series, most of eviscerations were performed on the right eyes of men, with a vision of no light perception and preoperative pain. The main causes were endophthalmitis and ocular trauma. Most patients received a primary porous polyethylene implant, achieving good tolerance of the ocular prosthesis. Evisceration is shown as an alternative to enucleation in cases where the sclera can be preserved, showing low incidence of sympathetic ophthalmia. The importance of descriptive studies is that this data can serve as a prognostic indicator for patients that are candidates for this surgery. Commercial Relationships: Miriam G. Arellano, None; Francisca Zuazo, None; Martin Gonzalez, None; ALBERTO ABDALA, None; Angel Nava, None; OSIRIS OLVERA-MORALES, None; JOSE L. TOVILLA CANALES, None Program Number: 703 Poster Board Number: B0202 Presentation Time: 1:30 PM–3:15 PM A new orbital implant model of high density porous polyethylene: First animal model using OMNIPOR Francisco J Rodriguez, Mariana Cabrera, Marcela Lonngi, Cristina Gabela, Maria Teresa Daza. Fundacion Oftalmologica Nacional, Bogota, DC, Colombia. Purpose: Medpor ® is an orbital implant for anophthalmic cavities made of high density porous polyethylene (HDPP), which is safe and has good biocompatibility. Omnipor ® is a new HDPP implant, with similar characteristics to Medpor®, which has not been studied in vivo. The purpose of this study was to compare the results obtained with Medpor® versus Omnipor® in an animal model in terms of vascularization of the device after two and four weeks of implantation. Vascularization is the main measurement for biocompatibility. Methods: Sixteen New Zealand rabbits were randomized into four groups: Group 1: Medpor for 2 weeks, 2: Omnipor for 2 weeks, 3: Medpor for 4 weeks, 4: Omnipor for 4 weeks. All rabbits underwent enucleation of the right eye with implantation of a sphere of 12 mm of either Omnipor or Medpor according to the initial randomization. Two weeks after implantation, 8 rabbits (4 from each group) were sacrificed with sodium thiopental. Implants were extracted and fixated with 10% formaldehyde and parafin. The process was repeated at 4 weeks with the remaining rabbits. Three plaques (3 microns thick) were obtained at the equator of the implant which were stained with hematoxilin-eosin. The plaques were divided into quadrants and the deepest point of fibrovascular growth was measured from the external border in mm. This process was done by two independent pathologists obtaining 24 values for each rabbit. Other characteristics of the implant were reported such as: encapsulation, foreign body granulomatous reaction, infection, etc. Results: Fourteen rabbits were included in the final report (2 rabbits died soon after surgery). Seven in the Medpor group and 7 in the Omnipor group. The results are summarized in table 1. There were no complications related to the implants. Vascularization was significantly higher at week four compared to week two in both Medpor and Omnipor (p<0.0001). There was no statistical difference between the vascularization with Medpor vs. Omnipor at two and four weeks (p>0.05). Conclusions: There was no difference in the degree of vascularization between the two implants. There were no complications related to the implants. None of the implants showed complete vascularization. More studies are needed to confirm the safety and biocompatibility of the new implant. These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts Commercial Relationships: Francisco J Rodriguez, None; Mariana Cabrera, None; Marcela Lonngi, None; Cristina Gabela, None; Maria Teresa Daza, None Program Number: 704 Poster Board Number: B0203 Presentation Time: 1:30 PM–3:15 PM Evisceration with autogenous scleral graft and implantation by posterior way with ceramic implants: a seventeen-year study of 134 case reports Jeremy NADAL, Vincent Daien, Jacques Jerome, Frederic MURA, Didier HOA, Max Villain. france, chu gui de chauliac montpellier, CODOGNAN, France. Purpose: To present long-term follow-up data on eviscerations performed with autogenous scleral graft and a ceramic implantation by posterior way. Methods: This study is a retrospective analysis of all eviscerations performed in the department of ophthalmology, Montpellier, France, between February 1998 and October 2015. The technic used was a conventional anterior evisceration with a total keratectomy, a disinsertion of the medial rectus muscle, a sectioning of the optic nerve and a taking of sclera centered on the papilla. The scleral graft was sutured just behind the suture of keratectomy, and the bioceramic implant carried out by posterior way. Demographic characteristics, implant size and type, cosmetics and complications were recorded. Results: In total, 134 patients were included. The female to male ratio was 1/ 1,71. The median (interquartile range) size of implant was 17.32mm (1.84mm, [14-20]). The median follow-up after evisceration was 53.5 [2-138] months. Two cases of implant exposure (1.49%) were recorded during the study period. For 24 patients (17.9%), additional surgeries were performed for ptosis, conjunctival cyst or anophthalmic socket syndrome. Cosmetics results were recorded as good or excellent in 82.71% of cases. Conclusions: Evisceration with autogenous scleral graft and implantation by posterior way suggest a high volume restoration, high rate of good mobility and low risks of exposure of the implant. Commercial Relationships: Jeremy NADAL, None; Vincent Daien, None; Jacques jerome, None; Frederic MURA, None; Didier HOA, None; Max Villain, None Program Number: 705 Poster Board Number: B0204 Presentation Time: 1:30 PM–3:15 PM Retrospective Review of Indication of Evisceration, Enucleation or Exenteration at One Academic Institution Derek Horkey, Isabella Herrera, Jason Sokol. Ophthalmology, University of Kansas, Lenexa, KS. Purpose: Purpose: At times in ophthalmology instead of visionenhancing or vision-preserving procedures, it is necessary to perform eye destructive procedures, including evisceration, enucleation, and exenteration. The purpose of this study was to analyze over a five year period the number of eye destructive procedures and investigate the most common indication for said procedures. Methods: Methods: After obtaining IRB approval all medical records from August of 2010-February of 2015 from patients having eye destructive procedures performed by one surgeon at one academic tertiary care facility were reviewed investigating clinical indication for the procedure. Results: Results: There were 103 eye destructive procedures performed on 101 patients at one institution over the roughly 5 year period. Of these 103, 69% of the procedures were enucleations, 27% were exenterations, and 4% were eviscerations. The two most common indications for procedure were trauma (40%) and malignancy (34%). The other noted indications were blind painful eye (15%), infection (10%), and ruptured cornea (1%). Conclusions: Discussion: As one might imagine more complicated cases were very common indications for eye destructive procedures at a tertiary care center. The hospital is a level I trauma which would account for a high volume of trauma cases. Also given that there is a large cancer center the high incidence of malignancy is accounted for as well. There were also five exenterations performed because of invasive mucormycosis. In these five patients, four had known malignancies and one had immunodeficiency secondary to unknown reason which was being worked up at the patients time of death. These numbers suggest that often complicated orbital trauma and malignancies are transferred or referred to tertiary care centers for definitive management and treatment. Our institution has a large cancer center, which contributes to our significant number of procedures secondary to those malignancy as well as malignancy related infections. Indications for eye destructive procedures Distribution of malignancies and eye destructive procedures Commercial Relationships: Derek Horkey, None; Isabella Herrera, None; Jason Sokol, None Program Number: 706 Poster Board Number: B0205 Presentation Time: 1:30 PM–3:15 PM Characterization of the preservative effects of UW cold storage solution on mouse eyes harvested for whole eye transplants Robert W. Nickells1, Cassandra Schlamp1, Heather M. Schmitt1, Bikash R. Pattnaik2. 1Ophthalmology and Visual Sciences, University of Wisconsin-Madison, Madison, WI; 2Pediatrics, University of Wisconsin-Madison, Madison, WI. Purpose: A principal obstacle preventing successful whole eye transplantation (WET) is the preservation of retinal neurons, particularly retinal ganglion cells (RGCs). Preservation of other organs used in a majority of transplants has been achieved using University of Wisconsin cold storage solution (UWS). The efficacy of UW solution in preserving CNS tissue, including retina, has not been evaluated. Methods: Whole eyes were enucleated from mice and injected with either PBS or UWS. Some eyes were injected with UWS modified These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts with BaCl2 and valproic acid, in order to counter early changes in RGCs caused by axotomy. Globes were then immersed in PBS or UWS and stored for up to 24 hrs at 4°C. Globes were evaluated by H&E staining, NFκB reporter transgene expression as an indicator of ischemia, and TUNEL. Retinal cell types were evaluated for abundance of cell-specific transcripts by qPCR. Whole retina electrophysiology experiments are planned. Results: Injection of both solutions prior to storage was critical to enhanced retinal preservation. PBS eyes exhibited edematous changes to all ocular compartments within 6 hrs, but particularly photoreceptor outer segments and the nerve fiber layer. Limbal scleral fibroblasts also exhibited NFκB activation. UWS eyes exhibited nearly pristine histology of all ocular compartments, including the retina, as late as 24 hrs. Neither solution elicited TUNEL staining or a change in lens opacity. Gross total RNA appeared intact in both PBS and UWS retinas (24 hrs), but PBS eyes exhibited a decrease in RNA amount as a function of wet tissue weight. Transcript abundance, relative to freshly prepared retina, showed an overall decrease in levels in eyes stored in both solutions, although UWS levels were statistically higher across the board. Amacrine cells faired the best in storage, while bipolar cells appeared most adversely affected. Some RGC-select genes (Sncg and Gap43) were the same or greater than levels in fresh retinal tissue. Conclusions: Baseline studies using UWS to preserve mouse eyes in preparation for WET prevented edema of ocular tissues. Molecular studies of retina, as a function of transcript levels, indicate significant beneficial effects on multiple cell types, including RGCs. This latter finding may facilitate increased regenerative potential of these cells. Functional testing is currently ongoing. Commercial Relationships: Robert W. Nickells, None; Cassandra Schlamp, None; Heather M. Schmitt, None; Bikash R. Pattnaik, None Support: NEI R01 EY012223, P30 EY016665, Lions Eye Bank of Wisconsin, Research to Prevent Blindness Program Number: 707 Poster Board Number: B0206 Presentation Time: 1:30 PM–3:15 PM Total Human Eye Allotransplantation (THEA): Preclincal Cadaveric Studies Maxine R. Miller1, 2, Edward H. Davidson1, Eric W. Wang3, Jenny Y. Yu2, Juan C. Fernandez-Miranda4, Dawn J. Wang1, Joel S. Schuman2, 5, Kia M. Washington1, 6. 1Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA; 2Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PA; 3 Department of Otolaryngology, University of Pittsburgh, Pittsburgh, PA; 4Department of Neurosurgery, University of Pittsburgh, Pittsburgh, PA; 5Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA; 6VA Pittsburgh Healtcare System, Pittsburgh, PA. Purpose: It is estimated that approximately 40 million suffer from blindness globally. Whole eye transplantation offers the opportunity to provide viable retinal ganglion cells and an entire optical system to recipients with vision loss. Our group has established the first orthotopic model for eye transplantation in the rat. With advancements in immunomodulation strategies together with new therapies in neuroregeneration, parallel development of human surgical protocols is vital in ensuring momentum towards eye transplantation in patients. Methods: Preserved injected human cadaveric heads (n=8) underwent donor and recipient procedures. Bilateral transplants were performed between two cadavers in each surgical session, for a total of 4 transplants between 2 cadavers. A globe and periorbita model was adopted. Donor procurement required orbital exenteration with combined endonasal and transcranial approach to decompress the orbital apex. Transection of cranial nerves II-VI and superior ophthalmic vein was performed at the cavernous sinus transcranially and the ophthalmic artery with carotid artery stem was ligated in the paraclival space to deliver the donor specimen. Candidate recipient vessels (superficial temporal, internal maxillary and facial artery and superficial temporal and facial vein) were exposed. All required vein grafting. Donor tissue was secured in recipient orbits followed by sequential arterial and venous anastomoses and nerve coaptation with standard microsurgical techniques. Pedicle lengths and calibers were measured. All steps were timed, photographed, video recorded and analyzed after each operative session. Results: Technical feasibility of cadaveric donor procurement and transplantation to cadaveric recipient was established. Mean donor ophthalmic artery pedicle length and caliber were 13.5 and 1mm but with a stem of paraclival internal carotid artery were 33 and 2mm. Mean optic nerve was 25mm from orbital apex to annulus of Zinn and 14 mm from annulus of Zinn to optic chiasm. Cranial nerves III-VI had mobile pedicle lengths of 10-14mm. Candidate recipient vessels required vein grafting. Conclusions: This surgical protocol serves as a benchmark for optimization of technique, large animal model development, and ultimately potentiating the possibility of vision restoration transplantation surgery. Commercial Relationships: Maxine R. Miller, None; Edward H. Davidson, None; Eric W. Wang, None; Jenny Y. Yu, None; Juan C. Fernandez-Miranda, None; Dawn J. Wang, None; Joel S. Schuman; Kia M. Washington, None Support: 5T32 EY017271-07 These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts Program Number: 708 Poster Board Number: B0207 Presentation Time: 1:30 PM–3:15 PM Characteristics of Graves’ Orbitopathy Patients Requiring Strabismus Surgery After Orbital Decompression Michelle Boyce, Isabella Herrera, Thomas Whittaker, Jason Sokol. Ophthalmology, University of Kansas, Shawnee, KS. Purpose: Post-decompression strabismus and diplopia are not uncommon in Graves’ orbitopathy patients and most require either prisms or strabismus surgery to correct their vision. We sought to determine whether there are characteristics that make it more likely for patients to undergo strabismus surgery after decompression. Methods: We performed a retrospective review of Graves’ orbitopathy patients who underwent orbital decompression in our institution from 2010 to 2015 (IRB approved). The preoperative characteristics examined were: age, gender, disease duration, smoking history, presence of optic neuropathy, history of steroid therapy, radioactive thyroid ablation, and prior history of strabismus surgery and/or decompression. Patients were classified either as type 1 or type 2 Graves’ orbitopathy subtype as described by Nunery et al. Only patients who reported diplopia after decompression and required either prisms or strabismus surgery were included in the final analysis. Results: In the 63 patients that underwent orbital decompression, ten type 1 patients were identified and none of these patients reported post-decompression diplopia in primary gaze. In the 53 Type 2 patients that were identified, 19 patients required strabismus surgery while seven required prisms to treat their post-decompression diplopia. In the assessed parameters, there were no significant differences between the strabismus and prism groups within the Type 2 patients except for the prism group having more former smokers (p=.0026) and the surgery group having more patients with optic neuropathy (p=.0394) Conclusions: While we are limited by the retrospective nature of our study, our data suggests that Type 2 patients are more likely to require strabismus surgery especially those with compressive optic neuropathy. We hypothesize that this could be secondary to larger, scarred muscles and apex crowding that required more bony decompression and orbital strut removal resulting in strabismus too great to be corrected by prisms. Larger EOMs and strut removal have been implicated in literature to contribute to the development of post-decompression diplopia. Smoking cessation may prevent further EOM damage and reduce the need for strabismus surgery as smoking has been linked to mediate restrictive myopathy in Graves’ patients. Table 1. Comparison of the strabismus surgery group and the prism group. Commercial Relationships: Michelle Boyce, None; Isabella Herrera, None; Thomas Whittaker, None; Jason Sokol Program Number: 709 Poster Board Number: B0208 Presentation Time: 1:30 PM–3:15 PM Orbital Decompression in Thyroid Eye Disease, A 5 year review in a reference center in Mexico City NAYELI ALCARAZ LARES, ALBERTO ABDALA, OSIRIS OLVERA-MORALES, JOSE L. TOVILLA CANALES. INSTITUTO DE OFTALMOLOGIA CONDE DE VALENCIANA, DISTRITO FEDERAL, Mexico. Purpose: Thyroid eye disease (TED) is a form of autoimmune orbital inflammation which during its active inflammatory phase, leads to infiltration of muscles, lacrimal glands and orbital fat by lymphocytes and glycosaminoglycans. Decompression can be utilized to treat these cases and different approaches can be chosen such as a bone or fat removal. We performed a retrospective study to describe the initial presenting characteristics, surgical approaches and outcomes during our 5 year experience. Methods: A total of 19 patients were selected, for a total of 38 orbits. Gender 12 females and 7 males. A retrospective review of all patients undergoing orbital decompression for TED associated criteria between 2010 and 2015. Clinical outcome measures included were demographic data, Hertel exophthalmometry pre and post op, surgical technique elected and preoperative thyroid status. Patients who did not meet the criteria were excluded. T student test was applied to all variables. Results: Median age for males was 45 and 51 years for females with no statistical significant difference between genders. Technique chosen was bony decompression in 15 cases (78.9%) and fat decompression in 4 cases (21.1%). In bony decompression the most common option was inferior plus medial walls in 68.4% of cases, followed by 3 walls (lateral, medial and inferior) in 10.5%. These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts The most common indication for surgery was disthyroid optic neuropathy (52.6%), followed by cosmetic (31.6%) and intractable IOP (15.8%). 57.9% of patients received steroid treatment prior to surgery and 94.7% received steroids post op. Thyroid status prior to surgery showed hyperthyroidism in 17 cases (89.5%). Hertel exophthalmometry post op showed a medium decrease of 3mm in both eyes with a bony decompression and a medium of 4.5mm with a fat decompression. Conclusions: Our findings correlate to previous published data except the result that fat decompression provides a greater decrease in post exophthalmometry. Our study is limited by several factors particularly its retrospective nature and small cohort of patients which is inherent due to the rare nature of this procedure. We believe more prospective studies are needed to verify our findings and to provide clear guidelines with which to choose the most appropriate conduct. Commercial Relationships: NAYELI ALCARAZ LARES, None; ALBERTO ABDALA, None; OSIRIS OLVERA-MORALES, None; JOSE L. TOVILLA CANALES, None Program Number: 710 Poster Board Number: B0209 Presentation Time: 1:30 PM–3:15 PM Early Experience with Medpor Nonporous Barrier Sheet In Orbital Fracture Repair Lillian Yang1, Chris Compton2, Manuel Ochoa3, Babak Ziaie3, Jason Sokol1, Michelle Boyce1. 1Department of Ophthalmology, University of Kansas, Prairie Village, KS; 2Department of Ophthalmology, University of Louisville, Louisville, KY; 3Birck Nanotechnology Center, Purdue University, West Lafayette, IN. Purpose: To evaluate the efficacy of the Medpor nonporous barrier sheet as a substitute for supraFOIL in orbital fracture repairs. Methods: A prospective, case series using the Stryker 0.4mm thick medpor nonporous barrier sheet in patients presenting with orbital fractures. Patient age, type of fracture, etiology of injury, presence of pre-operative restriction and diplopia, and post-op diplopia and/ or enophthalmos were recorded. Patients were followed or will be followed for 6 months. Scanning electron microscopy was used to compare the thickness, smoothness, and porosity of the Medpor nonporous barrier and SupraFOIL implants. Beam deflection testing was performed to compare the biomechanical properties of each implant. Results: 47 patients underwent repair of orbital fractures with the Medpor nonporous barrier sheet. Average age was 43.3 years (range 18-84). 27 of 47 patients (57.4%) were males and 20 (42.6%) were females. The most common cause of injuries were: Assault (38.3%), MVA (14.9%), falls (25.5%), and sports-related (10.5%). 20 of 47 patients (42.6%) had isolated orbital floor and 2 patients (4.3%) had isolated medial wall fractures. 15 patients (31.9%) had combined floor and medial wall fractures involving the inferomedial orbital strut. 28 patients (59.6%) had pre-operative diplopia. Timing of surgery was between 3 and 55 days, with the median of 11.5 days. 5 of 47 patients (10.6%) has residual diplopia at their 1 week post operative visit, each had resolved at 2 months post op. Electron microscopy showed that the 0.4mm Medpor nonporous barrier implant was thinner (0.33mm) than reported and thinner than 0.4mm SupraFOIL (0.38mm). SEM also showed that the surface of the Medpor nonporous barrier was smooth and nonporous. Beam deflection testing showed that for small forces (< 100 mN) the two materials behaved nearly identically, but at higher forces the nonporous Medpor implant was weaker. Conclusions: The use of Medpor nonporous barrier sheet implant for orbital fracture repair is a safe and effective alternative. There were no complications and no residual diplopia or restriction. The “0.4mm” Medpor nonporous barrier was thinner (0.33mm) than SupraFOIL implant (0.38mm). The Medpor nonporous barrier was also weaker when compared to SupraFOIL at higher forces >100 mN. This may require thicker implants (~0.5 -0.6 mm) for combined orbital floor and medial wall fractures where the orbital strut is involved. Commercial Relationships: Lillian Yang, None; Chris Compton, None; Manuel Ochoa, None; Babak Ziaie, None; Jason Sokol, None; Michelle Boyce, None Program Number: 711 Poster Board Number: B0210 Presentation Time: 1:30 PM–3:15 PM Distinguishing orbital and preseptal cellulitis: how useful are clinical history and physical exam? Alexander Port, Benjamin Levine. Ophthalmology, Weill Cornell Medical College, New York, NY. Purpose: Preseptal and orbital (post-septal) cellulitis often present similarly, but must be distinguished to ensure appropriate management. This study seeks to determine whether clinical history and physical examination alone provide an accurate diagnosis of orbital cellulitis as compared to imaging findings. Methods: We reviewed all inpatient and ED ophthalmology consultations for suspected orbital cellulitis over a 5-year period (Oct 2010-Oct 2015). Records were reviewed and analyzed with respect to demographics, exam findings, imaging findings and outcomes. Results: There were 139 consultations for suspected orbital cellulitis with complete records available. Of these, 89 had preseptal cellulitis, 39 had orbital cellulitis, and 11 had other diagnoses. CT or MRI imaging was available for 98 of 139 subjects (70.5%). Subjects with preseptal and orbital cellulitis differed with respect to several factors (see table 1). On forward stepwise logistic regression, a diagnosis of orbital cellulitis was associated with proptosis (OR 33.4, 95% CI: 5.2, 68.6, p = 0.001) restricted extraocular movement (OR 29.5, 95% CI: 7.1, 123.1, p = 0.001) and afferent pupillary defect (OR 19.3, 95% CI: 1.4, 68.9, p = 0.028). 36 patients had at least one “orbital sign” including ophthalmoplegia, chemosis, proptosis, elevated IOP, RAPD, or dyschromatopsia. Of these, 27 demonstrated radiographic evidence of orbital involvement and 9 did not. 16 subjects were found to have 2 or more orbital signs on examination, all of whom had orbital cellulitis. The presence of at least 1 orbital sign on examination had a sensitivity of 69.2% (95%CI: 52.4-83.0%) and a specificity of 89.9% (95%CI: 81.795.3%) for the diagnosis of orbital cellulitis. If 2 or more orbital signs were found, examination findings had 41.0% sensitivity (95%CI 25.6-57.9%) and 100% specificity (95% CI: 95.9-100%) for orbital cellulitis. Conclusions: There were significant differences in clinical history and examination findings of patients with preseptal and orbital cellulitis. Clinical exam findings had moderate sensitivity and high specificity for the presence of orbital cellulitis. In cases of suspected orbital cellulitis where imaging is unavailable or deferred, the clinical exam may reliably distinguish between patients with and without post-septal involvement. These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts Results: 17 cases were identified for analysis: 8 patients (48%) were male, with a mean age of 51.9 ± 11.1 years. Of these cases the largest group showed non-specific inflammation; 15 (88%) of which 3 (18%) displayed IgG4 expression. There was also 1 case of granulomatous sarcoidosis and 1 case of granulomatosis with polyangiitis. 3 cases(18%) were managed without systemic corticosteroids or other immunosuppressant medication. 11 cases (65%) were managed with steroids alone; with an average cumulative dose of 2.8g over a mean course of 23.5 weeks. 3 patients (18%) required other immunosuppressive treatment at different stages of their management. Of the cases managed with steroids alone 6 had a single course of treatment however 5 (45%) relapsed with 4 cases requiring a further course of systemic steroids and 1 case methotrexate. Of the 3 cases which displayed IgG4 expression 2 (67%) relapsed after steroids were discontinued requiring a further course. 2 patients (12%) are currently on long term systemic steroid treatment to prevent relapse. Pain (71%) and proptosis (71%) were the most common clinical features observed. 5 (29%) patients had a complete resolution of all of their symptoms following treatment and all of the remaining patients had a partial improvement. Conclusions: The established management of orbital inflammatory disease is with systemic steroids, this series highlights the need for a significant course of tapering treatment. A large proportion of cases treated with steroids relapse and require further courses of treatment. These factors should be considered when counselling patients with OID and deciding upon gastric and bone protection. In this case series patients with IgG4 have a higher incidence of recurrence. Commercial Relationships: Eric Spink, None; Darren Ting; Lucy Clarke, None Table 1: Preseptal vs orbital cellulitis. Significant differences highlighted in bold. Commercial Relationships: Alexander Port, None; Benjamin Levine, None Program Number: 712 Poster Board Number: B0211 Presentation Time: 1:30 PM–3:15 PM Biopsy proven idiopathic orbital inflammatory disease - clinical features, management and treatment outcomes Eric Spink, Darren Ting, Lucy Clarke. Ophthalmology, Newcastle upon tyne NHS trust, Newcastle upon Tyne, United Kingdom. Purpose: We evaluated the clinical features, management and clinical outcome of biopsy proven idiopathic orbital inflammatory disease (IOID), from a UK tertiary referral centre. Our aim was to identify prognostic factors that may be used to guide management. Methods: This was a retrospective, clinical–pathological, interventional, case series of biopsy proven IOID between 2006 and 2014 from the Newcastle Eye Centre (Newcastle upon Tyne, UK). Data was collected from the patient notes, clinic letters and the local patient database. Program Number: 713 Poster Board Number: B0212 Presentation Time: 1:30 PM–3:15 PM Clinical and radiographic characteristics of biopsy-proven adult orbital lesions at an urban academic center Hans Barron Heymann, Michael Mbagwu, Paul Bryar. Ophthalmology, Northwestern Mcgaw Medical Center, Chicago, IL. Purpose: To describe the clinical and radiographic characteristics of biopsy-proven adult orbital lesions at a single academic center Methods: A retrospective chart review was conducted using the Northwestern Enterprise Data Warehouse for all adult patients having undergone orbital biopsies from January 2000 to October 2014. The database was queried using CPT codes for all orbital biopsies. Patients under age 18 years were excluded. 495 adults were identified using the CPT coding for orbital biopsies. Of the 495, 381 patients were excluded from study following chart review that did not demonstrate biopsies of orbital lesions and 10 patients were excluded because of incomplete records. 103 patients and 104 total cases fit inclusion criteria into the study. Results: Clinical: Of 104 cases, 31.7% (n=33) were considered lymphoma or lymphoid lesions (LLL) and 68.3% (n=71) were non-lymphoid lesions (NLL). Of LLL, the most frequent were extranodal marginal zone lymphoma (ENML) 48.5%, lymphoid hyperplasia 21.2%, diffuse large B cell lymphoma 9.1% and IgG-4 disease 9.1%. Of NLL, the most frequent were categorized as non-neoplastic benign conditions 32.4% (n=23). Of these, amyloidosis and sarcoidosis (n=5 each) were most frequent. Of the remaining neoplastic NLL, the most frequent were infiltrating basal cell carcinoma (BCC) (8.5%), metastasis (8.5%), infiltrating squamous cell carcinoma (SCC) (7.0%), pleomorphic adenoma (5.6%) and solitary fibrous tumor (5.6%). Radiographic: Of 104 patients, 94.2% (n=98) of the patients had imaging studies documented, 5.8% (n=6) had no imaging These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts recoded. Of the 98 patients with documented imaging 63 (64.3%) had CT scans and 34 (34.7%) had MRI scans initially ordered. One patient (1.0%) had an ultrasound performed. A radiologist listed a clinical differential diagnosis in 80 of the 98 CT/MRI reports (81.6%.) The ultimate histopathologic diagnosis was in the radiologist’s differential diagnosis in 58 of the 80 reports (72.5%). Conclusions: The majority of orbital biopsy diagnoses were NLL (68%), with 32% being LLL. Of the NLL, the most common diagnoses were non-neoplastic disorders, BCC, metastases, and SCC. Of the primary orbital tumors, pleomorphic adenoma and solitary fibrous tumor were the most common. For the lymphoid lesions, approximately 70% were malignant lymphoma, with ENML being most common. Radiologists predicted the histopathologic diagnosis 73% of the time. Commercial Relationships: Hans Barron Heymann, None; Michael Mbagwu; Paul Bryar, None Support: Research to Prevent Blindness, New York, New York Program Number: 714 Poster Board Number: B0213 Presentation Time: 1:30 PM–3:15 PM Environmental Risk Factors for the Development of Concurrent Involutional Lower Lid Entropion and Upper Lid Ptosis Kendra Clemons1, 2, Michael E. Migliori1, 2. 1Ophthalmology, Brown University, Providence, RI; 2Rhode Island Hospital, Providence, RI. Purpose: To identify environmental risk factors associated with the development of concurrent involutional lower lid entropion and upper lid ptosis. Methods: After receiving institutional review board approval from Rhode Island Hospital, we reviewed the medical records of patients referred to three oculoplastic surgeons for evaluation of involutional entropion from January 2009 to Januarry 2014. We exckuded oatuebts with previous eyelid or intraocular surgery, trauma, and thyroid eye disease. We collected patient’s age, gender, ethnicity, medical comorbidities, smoking history, alcohol use, and the marginal distance reflex (MRD1). Visually significant ptosis was 2 millimeters (mm) or less. We analyzed the data using chi-square test, t-test, and the factorial generalized estimating equation (p< 0.05). Results: There were 181 records that met our inclusion criteria; 56 patients were exclided; 125 were entered into the study. The prevalence of ptosis and involutional entropion was 30.6% (38); 18 (15%) patients had never used tobacco, 37 (29.7%) patients reported tobacco use (p<0.05); 27 (22%) reported alcohol use and 28 (23%) reported no alcohol use (p=0.9332). The mean MRD1 in patients that reported neither alcohol nor tobacco use was 1.8 mm (p<0.05). The mean MRD1 in patients that reported alcohol use was 2.9 mm (p< 0.05); the mean MRD1 in patients that reported tobacco use was 0.9 mm (p<0.05), which was visually significant ptosis. The mean MRD1 for patients that reported both tobacco and alcohol use was 1.3 mm (p< 0.05). Conclusions: Smoking may play a role in the development of concurrent involutional lower lid entropion and upper lid ptosis. Commercial Relationships: Kendra Clemons, None; Michael E. Migliori Program Number: 715 Poster Board Number: B0214 Presentation Time: 1:30 PM–3:15 PM Preoperative levator function is a significant factor in postoperative results of Muller’s muscle-conjunctival resection Dan Yoon1, Rakesh Patel2, Vinay K. Aakalu1, Pete Setabutr1. 1 Ophthalmology, University of Illinois at Chicago, Chicago, IL; 2 Palmetto Health Ophthalmology Associates, Columbia, SC. Purpose: How Muller’s muscle-conjunctival resection (MMCR) improves ptosis is unclear. We conducted a retrospective, observational clinical study to test the hypothesis that preoperative levator function is associated with post-operative results of MMCR. We also tested whether the length of resection and pre-operative phenylephrine response are significant factors. Methods: Fifty-eight eyes of 39 patients that underwent MMCR were included in the study. Pre-operative levator function, postphenylephrine change in margin reflex distance 1 (MRD1), length of resection, and post-operative MRD1 were measured (in mm). Multiple linear regression was performed with post-operative MRD1 as the dependent variable. Results: The regression model was statistically significant (F(4, 53) = 3.12, p = .034), with an R2 of .15. There was a significant association between preoperative levator function and post-operative MRD1 (β = .35, t(57)= 2.6, p = .012). Post-phenylephrine MRD1 (β = .02) and length of resection (β = -.84) were not significantly associated with post-operative MRD1 (ps > .05). Conclusions: Preoperative levator function is a significant factor in postoperative results of MMCR. Length of resection and preoperative phenylephrine response are not significant factors. Commercial Relationships: Dan Yoon; Rakesh Patel, None; Vinay K. Aakalu, None; Pete Setabutr, None Program Number: 716 Poster Board Number: B0215 Presentation Time: 1:30 PM–3:15 PM Comparative Analysis of Eyelid Contour Changes in Müller’s Muscle Conjunctival Resection and External Levator Resection Ptosis Surgery Daniel Rootman, Jennifer Danesh, Robert Goldberg. Ophthalmology, UCLA, Los Angeles, CA. Purpose: Although Müller’s Muscle Conjunctival Resection (MMCR) and External Levator Resection (ELR) are widely utilized to manage ptosis, there is little direct comparative data regarding outcomes. Further, there is a dearth of available data concerning objective or quantitative assessment of eyelid contour results. This study aims to assess relative changes in upper eyelid contour for patients undergoing MMCR and ELR surgery. Methods: In this retrospective cohort study, 20 eyes of 10 patients who underwent MMCR and 20 eyes of 16 patients who underwent ELR in a single center were included. Patients with history of previous or concurrent eyelid surgery or orbital disease were excluded. Primary position photographs were obtained pre-operatively and >3 months postoperatively. Processing and measurement of the digital photos with public domain NIH ImageJ software proceeded as follows. Images were rotated in order that a line intersecting the lateral canthi was made parallel to the horizontal axis. The center of the pupil was then defined as the 0,0 coordinate. Images were calibrated using a standard corneal diameter for males and females respectively. Along the x-axis,10 points were defined:at the center of the pupil and at 2mm intervals laterally to 10mm and medially to 8mm(Figure 1). This was performed at baseline and postoperative photographs. One-way and repeated measures ANOVA were performed Results: The overall main effect of position was significant(p<0.05) indicating there is variation in vertical height across the eyelid. The effect of time was also significant(p<0.05) indicating that the vertical height of the eyelid changed with surgery. When assessing individual point differences between groups, there was a significant interaction effect of group on time at the nasal-most positions of 6 and 8mm(p<0.05), with a trend at 4mm(p<0.07), indicating a greater change with MMCR at these positions(Figure 2a). Comparing change in height at each point across the two groups revealed MMCR to have greater change at positions N4, N6 and N8(p<0.05) (Figure 2b). These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts Conclusions: Both MMCR and ELR are effective in elevating the eyelid. Relative to ELR, there is a small but significant bias towards increased vertical elevation medial to the center of the pupil in the MMCR group. This suggests that there may be a relative medial bias with MMCR, or conversely a lateral bias with ELR. Commercial Relationships: Daniel Rootman, None; Jennifer Danesh, None; Robert Goldberg, None Program Number: 717 Poster Board Number: B0216 Presentation Time: 1:30 PM–3:15 PM Material breakage as an early complication of expanded Polytetrafluoroethylene (ePTFE) usage in frontalis suspension surgery for poor levator function blepharoptosis John C. Zeyer, Hassan Shah. Ophthalmology and Visual Science, University of Chicago, Chicago, IL. Purpose: To report the results and complications of frontalis suspension surgery using expanded polytetrafluoroethylene (ePTFE) for poor levator function blepharoptosis over a 2-year period. Methods: Retrospective chart review of all frontalis suspension surgeries performed by a single surgeon over 2-years. All procedures were performed using ePTFE of 2 or 3 mm width (Ptose-Up, FCI Ophthalmics). Surgeries were performed through an eyelid crease incision with a single pentagonal design involving suture fixation of material to the tarsal plate. The material was then tied in a square knot and buried just above the brow. Postoperative success was defined as upper margin reflex distance (MRD1) of 2.5 mm or more, a cosmetically acceptable eyelid contour, and lagophthalmos 1 mm or less. Complications included material breakage, granuloma formation, unacceptable contour, lagophthalmos and ptosis recurrence. Results: 22 frontalis suspension surgeries were performed in 15 patients (14 children and 1 adult) from July 2013 to June 2015. The etiology of ptosis was congenital in 13 patients, third nerve palsy in 1 patient, and traumatic ptosis in 1 patient. Mean age of the children was 3 years (Range 1-5 years). Mean follow up time was 5 months. 13 procedures (60%) had successful results that did not require reoperation. In 2 procedures (9%) the ePTFE broke intraoperatively and the procedure was repeated immediately. In 5 procedures (23%) the ePTFE broke in the postoperative period (range postoperative day 1 to 44), which was confirmed during reoperation. 1 patient (4%) developed a brow granuloma and abscess that required surgical removal of the material. 1 eyelid (4%) had undesirable contour requiring reoperation. Conclusions: ePTFU has been reported as an excellent material for frontalis suspension surgery with a low rate of ptosis recurrence and complications. Our data concurs with other studies in terms of achieving excellent eyelid height and contour with this material. However, in our cohort there was a high incidence of material breakage in the early postoperative period, as well as two cases of intraoperative breakage. This is an important complication to be aware of when using ePTFE. Factors such as material width and thickness, surgical technique, handling of the material, and postoperative care may all play a role. Commercial Relationships: John C. Zeyer, None; Hassan Shah Program Number: 718 Poster Board Number: B0217 Presentation Time: 1:30 PM–3:15 PM Significance of Early Postoperative Eyelid Position on Late Postoperative Result in Müller’s Muscle Conjunctival Resection Surgery Jennifer Danesh1, Shoaib Ugradar2, Robert Goldberg1, Naresh Joshi2, Daniel Rootman1. 1Stein Eye Institute, UCLA, Beverly hills, CA; 2 Chelsea and Westminster Hospital, London, United Kingdom. Purpose: External levator resection(ELR) and Müller’s muscle conjunctival resection(MMCR) differ in the tissues dissected during surgery. This study aims to determine if resection of purely the levator aponeurosis or Müller’s muscle and conjunctiva has a differential effect on variation in eyelid position after surgery. Methods: In this retrospective observational cohort study, patients from two practices undergoing surgery for involutional ptosis over a 10-year period were screened. Exclusion criteria includes trauma, ocular disease, or past orbital surgery. Patients underwent MMCR surgery (RAG) or ELR (NJ). Marginal reflex distance (MRD) was calculated on photos using NIH ImageJ software. Measurements were made at baseline, 1 week postoperatively and at 3 to 12 months follow up. The primary outcome measure was change in MRD over time. The secondary outcome measure was the proportion of patients with minimal early change in MRD (< 0.5 mm at 1 week). Repeated measures ANOVA, T-test and Chi square tests were performed. Results: Of 135 eyes, there were 101 in the MMCR group and 34 in the ELR group. Baseline mean MRD was 1.4mm in the MMCR group and 1.0mm in the ELR group(p<0.05). At the early postoperative visit, mean MRD was 2.3mm in the MMCR group and 2.8mm in the ELR group(p<0.05). At the late postoperative visit, mean MRD was 3.0mm in the MMCR group and 3.0mm in the ELR group(p>0.05). Change in MRD from baseline to early postoperative visit was greater after ELR(1.81mm vs. 0.88mm, p<0.05). Change in MRD from the early postoperative to the late postoperative visit was greater with MMCR(0.75mm vs. 0.26mm, p<0.05). These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts Repeated measures ANOVA confirmed the interaction of group and time(p<0.05), indicating that change over time was significantly different for ELR vs. MMCR(Figure 1). For the secondary outcome, the proportion of subjects with minimal(<0.05mm) change from the baseline to early postoperative visit was significantly(p<0.05) lower in the ELR group 11.8%) relative to the MMCR group(40.6%). Conclusions: ELR and MMCR can effectively elevate the eyelid and have similar late postoperative results. This study shows that MMCR cases undergo greater change between the early and late postoperative period, suggesting that the process of lid elevation in MMCR is more dynamic than in ELR. This supports the contention that MMCR and ELR surgery may act through different mechanisms. Commercial Relationships: Jennifer Danesh, None; Shoaib Ugradar; Robert Goldberg, None; Naresh Joshi, None; Daniel Rootman, None Program Number: 719 Poster Board Number: B0218 Presentation Time: 1:30 PM–3:15 PM Bilateral ptosis due to mitochondrial cytopathy secondary to antiretroviral treatment toxicity Nilly Banayan1, Pascal Laforet3, Tanya Stojkovic3, Anthony Behin3, Emmanuelle Salort-Campana2, Bahram Bodaghi1, Phuc Lehoang1, Valérie Touitou1. 1Ophthalmology, Pitié-Salpétrière Hospital, Paris, France; 2hopital La Timone, Marseille, France; 3Myology Institute, Pitie Salpetriere Hospital, Paris, France. Purpose: Progressive external ophthalmoplegia is the most common clinical presentation of mitochondrial diseases, associated with fatigability and muscular pain. These conditions are often hereditary and diagnosed early in life. We report cases of isolated bilateral ptosis due to acquired mitochondrial toxicity secondary to antiretroviral treatment in HIV infected patients. Methods: Medical records of patients treated with antiretroviral drugs for HIV infection and presenting with acquired ptosis evocative of mitochondrial cytopathy were retrospectively reviewed. Patients were followed both in the Myology and Ophthalmology departments. For all patients, differential diagnostics such as myasthenia, Melas, Merrf and oculopharyngeal dystrophy syndroms were ruled out by an etiologic work up. Muscular biopsy was performed in all cases to histologically confirm the diagnosis of mitochondriopathy and for genetic analysis purposes. Results: Ten male patients were included. All patients presented bilateral ptosis. Ptosis was initially bilateral and symetric in 4 patients (40%) and secondarly bilatreal in 6 patients (60%). The average delay between initiation of antiretroviral treatment and ptosis was 12 years. The muscular biopsy demonstrated red ragged fibers in 9 patients (90%) and a Cox1 deficit in all patients. Genetic analysis revealed multiple deletions in 4 patients (40%) but no DNA depletion. Conclusions: Mitochondrial toxicity secondary to antiretroviral treatment is an unknown cause of ptosis in patients without other muscular symptoms. Further genetic analysis remain necessary to assess the responsible abnormalities. Modification of the antiretroviral therapy does not seem to influence the evolution of the disease which could result from a cumulative toxicity as suggested by the 12-year delay before the onset of symptoms. This entity is probably largely underestimated among HIV patients and is important to detect because it can affect the therapeutic strategy for these patients, in case of surgical correction of the ptosis. Commercial Relationships: Nilly Banayan, None; Pascal Laforet; Tanya Stojkovic, None; Anthony Behin, None; Emmanuelle Salort-Campana, None; Bahram Bodaghi, None; Phuc Lehoang, None; Valérie Touitou, None Program Number: 720 Poster Board Number: B0219 Presentation Time: 1:30 PM–3:15 PM Preferred methods of pediatric ophthalmologists for ptosis repair in the pediatric population Jennifer Murdock1, Radha Ram2, Evelyn A. Paysse2, 1, Michael T. Yen1, Douglas P. Marx1. 1Baylor College of Medicine/ Cullen Eye Institute, Houston, Afghanistan; 2Texas Childrens Hospital, Houston, TX. Purpose: To investigate the most preferred materials used by pediatric ophthalmologists for frontalis suspensions in the pediatric population. Methods: An online questionnaire was submitted to members of American Association for Pediatric Ophthalmology and Strabismus (AAPOS). Data was collected through an internet survey database. Results: 85 respondents completed the survey. Most respondents preferred silicone rod (36.11%), followed by autologous fascia lata (19.44%), various suture types (18.06%), other materials (12.50%), preserved fascia lata (8.33%), and Gore-tex (5.56%) (Figure 1). Most respondents (82%) perform 10 or less frontalis suspensions each year, and those surgeons prefer silicone rod. Silicone rod and suture are the most preferred material in patients 3 years-old or younger. Along with silicone rod, autologous fascia lata was also considered in patients over 3 years of age (Figure 2). However, only 31% of respondents reported that a patient’s specific age influences their decision about which material to use in this population. Conclusions: In general, silicone rod is the most preferred material for frontalis slings in pediatric patients among AAPOS members. Silicone rod remains the dominantly preferred material in all specific age ranges for all surgeons, but autologous fascia lata becomes more often considered in pediatric patients older than 3 years of age. While small retrospective studies have investigated different methods for frontalis suspensions, prospective studies directly comparing different materials are suggested. These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts Figure 1. Percentages of AAPOS respondents’ preferred frontalis sling material in pediatric patients. Figure 2. Preferred materials preferred in specific age groups of pediatric patients. Commercial Relationships: Jennifer Murdock, None; Radha Ram, None; Evelyn A. Paysse; Michael T. Yen, None; Douglas P. Marx, None Program Number: 721 Poster Board Number: B0220 Presentation Time: 1:30 PM–3:15 PM Referral Patterns and Outcome Trends of Temporal Artery Biopsies Marie Somogyi, David Yoo, Yasmin Shayesteh. Loyola Univ Medical Center, Maywood, IL. Purpose: Giant cell arteritis (GCA) is diagnosed based on a combination of signs, symptoms and laboratory evidence. Temporal artery biopsy is the gold standard in diagnosis of GCA and referral for biopsy is commonly encountered in ophthalmology practices. Our review investigates referral patterns from various medical specialties and the correlation to a positive biopsy. Additionally, we analyzed outcome trends among various departments performing biopsies over an eight-year period. To our knowledge, this series of 143 patients is the largest to date evaluating outcomes based on referral source and surgical trends among specialties. Methods: IRB approved retrospective chart review of 143 patients who underwent a temporal artery biopsy from January 2006 to April 2014 by all specialties at our tertiary care center. Results: Of 143 patients, 15 had positive biopsies (10.5%) and 128 had negative biopsies. The departments performing the biopsies primarily include ophthalmology, plastic surgery, and vascular surgery. Ophthalmology performed 109 (76.2%) biopsies; however, there was a significant decline over time. From 2006-2009, ophthalmology performed an average of 90.1% of the biopsies, which decreased to 54.6% from 2010-2013. Similarly, overall biopsies performed decreased from 22 biopsies in 2006 to 11 in 2013. Among the 15 positive biopsies, 11 (73.3%) were performed by ophthalmology, 3 (20%) by vascular surgery, and 1 (6.6%) by plastic surgery. Internal medicine accounted for the majority of the referrals (51%) followed by ophthalmology (18.2%), rheumatology (13.3%), neurology (10.5%), and others (7.0%). Neurology referrals resulted in a 20% positive biopsy rate, followed by rheumatology (15.8%) and internal medicine (12.3%). Ophthalmology referrals did not result in any positive biopsies. Of the 15 positive biopsies, 60% were referred from internal medicine, 20% from rheumatology, and 20% from neurology. Conclusions: Over time, we have witnessed a decrease in temporal artery biopsies, as well as a decline in the proportion of biopsies performed by the ophthalmology department. Internal medicine provided the largest referral base for temporal artery biopsies. However, neurology had the highest proportion of positive biopsies per referral, suggesting they may have a better pretest probability for the disease. Interestingly, none of the referrals from within the ophthalmology department resulted in a positive biopsy. Commercial Relationships: Marie Somogyi, None; David Yoo, None; Yasmin Shayesteh, None Program Number: 722 Poster Board Number: B0221 Presentation Time: 1:30 PM–3:15 PM Proptosis and retrobulbar anesthesia: a technique to evaluate for subclinical retrobulbar hemorrhage Justin Spaulding, Therese Sassalos, Nitin Kumar, Aldo Fantin. Department of Ophthalmology, Henry Ford Hospital System, Royal Oak, MI. Purpose: This is a prospective pilot study to quantify the displacement of the globe and elevation in IOP from retrobulbar anesthetic injections. There is no prior studying measuring this phenomenon. Methods: All patients were currently enrolled for PPV with a retrobulbar block (5cc of equal parts 0.75% Marcaine and 4% lidocaine) injected into the muscle cone. Baseline preoperative measurements were taken in a supine position with Hertel (HR) and Naugle (NU) exopthalmometers, IOP was measured using a tonopen. The patient was then given the 5cc retrobulbar block and immediately thereafter all measurements were repeated. Using AEL, K radius, and ACD measurements (from IOL Master) we will determine the location of the apex in relation to the lateral canthi in the case of the HR or the frontal and maxillary bone in the These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record. ARVO 2016 Annual Meeting Abstracts case of the NU. The increased exopthamomiters readings can then be converted into a volume of forward displacement based off these values. A paired t-test was used for statistical analysis. Results: From the 7 subjects enrolled to date, there are 5 males and 2 females, 4 OD and 3 OS eyes. All patients are Caucasian. The difference of pre and post HR and NU measurements are statically significant with a P=0.0008 and P=7.6E-5 respectively. The average amount of proptosis is 3mm (HR) and 2.9mm (NU). There is not enough data to compare across genders. Our goal is to enroll a total of 15-20 patients for the study. Justification for this goal is based on a conservative standard deviation estimate of 3.75 (using a range of 15 divided by 4 -- this is the range of millimeters of proptosis from 15-30mm) should be appropriate. Using that standard deviation along with a 2-sided alpha level of 0.05, the paired t-test would have a power of 0.80 to detect an underlying mean measurement increase of 3 if a total of 15 patients are used. Conclusions: We hope in the end to have an average value of proptosis associated with the volume of injection. This is directly beneficial in the case of retrobulbar hemorrhage a rare complication of such injections. Any displacement past this average change in proptosis may indicate a subclinical retrobulbar hemorrhage. Naugle exophthalmometer - uses fixation points above and below the superior and inferior orbital rims to measure the distance of the corneal apex. Hertel exophthalmometer - measurement is taken from the lateral orbital rim to the corneal apex. Commercial Relationships: Justin Spaulding; Therese Sassalos, None; Nitin Kumar, None; Aldo Fantin, None These abstracts are licensed under a Creative Commons Attribution-NonCommercial-No Derivatives 4.0 International License. Go to http://iovs.arvojournals.org/ to access the versions of record.