Spheric or aspheric IOL? - Visual Optics Institute

Spheric or aspheric IOL? - Visual Optics Institute

Augenklinik
Klinikum Rechts der Isar
Technische Universität München
Direktor Prof. Dr. Dr. C-P Lohmann
Spheric or aspheric IOL?
A Lindenschmid1, M Küchle2, U Schönherr3,
C Lohmann1, C Winkler v Mohrenfels1
1 Technical University Munich
2 Eye Research Center, Erlangen
3 Kantonspital Barmherzige Brüder, Linz
No financial Interest
Aberratios and Cataract surgery
cornea
lens
+
total
=
spheric / aspheric IOL
Perception with standard IOL
Perception with optimal IOL
Setting
• 3 centers (Munich, Erlangen, Linz)
•
•
•
•
•
30 patients
First eye: aspheric IOL (HumanOptics MX 611ASP)
second eye spheric IOL (HumanOptics MC 611MI)
Visual acuity
Contrast Sensitivity
– Pelli Robson
– Optec 6500
• Topography
• Wavefront (Tracey 2.0, Ray Tracing)
Patients
Inclusion/exclusion criteria
• Bilateral catarat
• No other eye pathology (e.g. PEX, Maculopathy, Uveitis)
• No previous eye surgery
MC X11 ASP
Foldable one-piece posterior chamber lens
Optical diameter:
5,5 mm - 7,0 mm
Total diameter:
11,0 mm
Angulation:
0°
5,5 –7,0
mm
MC 611 MI
Foldable one-piece micro-incision posterior
chamber lens
Optical diameter:
6,0 mm
Total diameter:
11,0 mm
Angulation:
0°
6,0 mm
11 mm
Injector: Mini Glide 1,8mm
Est. A-constancy: 118.3 (Haigis)
11 mm
Injector: Mini Glide 1,8mm
Est. A-constancy: 118.3 (Haigis)
Patients
N=30
age
ASP
MI
72,67 (± 7,87)
Preop SE
- 0,5 (±2,25)
-0,83 (±2,38)
Lens power
22,16 (±2,45)
21,89 (± 2,53)
Axial lens
23,39 (± 0,75)
23,55 (± 0,66)
Results
N=30
ASP
MI
postop SE (3m)
-0,18 (± 0,33)
-0,39 (±0,29)
BCVA
0,87 (± 1,8)
0,83 (± 1,9)
pupil
4,65 (± 0,58)
4,69 (± 0,63)
Pelli Robson
10.7 (± 1,2)
9,9 (± 1,4)
Visual acuity - 3 mo bcva
% of eyes
100
90
80
70
60
50
MI
40
ASP
30
20
30
85
35
85
10
0
20/16,5
20/20
90
95
20/25
100
100
20/30
100
100
20/40
Results
10.7 (± 1,2)
ASP
9,9 (± 1,4)
MI
Results
• Spherical Aberration
spherical aberration [µm]
median
0.5
aspheric
spheric
0.4
0.3
0.2
0.1
0
2
3
4
5
pupil diameter [mm]
6
7
Results
• Optical aberrations, e.g. 77 y/o male
median
0.4
aspheric
spheric
spherical aberrations [µm]
0.3
0.2
0.1
0
-0.1
2
2.5
3
3.5
pupil diameter [mm]
4
4.5
5
Contrast Sensitivity
Day test
_ aspheric
_ spheric
Contrast Sensitivity
Night test
_ aspheric
_ spheric
Contrast Sensitivity
Day test with glare
_ aspheric
_ spheric
Contrast Sensitivity
Night test with glare
_ aspheric
_ spheric
Conclusion
o same visual acuity
o most patients prefer the eye with the aspheric lens
o better contrast sensitivity with the aspheric lens
o less spherical aberrations with the aspheric lens
Thank you