1. Kellan Tetraflex KH3500 Accommodative IOLs vs. Acri
Kellan Tetraflex KH3500 Accommodative IOLs vs. Acri.Lisa Diffractive Multifocal IOLs
C.A. Utine*, H. Çakır**, S. Genc***, I. Perente****
* Yeditepe University Eye Hospital, Istanbul, Turkey
** Turkiye Hospital Eye Clinic, Istanbul, Turkey
*** Pendik State Hospital, Istanbul, Turkey
**** Beyoglu Eye Research & Training Hospital, Istanbul, Turkey
ASCRS 2009

2. Financial Disclosures
The authors do not have any financial interests or relationships to disclose.
ASCRS 2009 1

3. Purpose To compare the clinical results of
Accommodative Kellan Tetraflex KH3500 (LensTec®) IOL
vs.
Diffractive Acri.Lisa (Acri.Tec®) multifocal IOL implantation
ASCRS 2009

4. Presbyopic IOLs Kellan Tetraflex KH3500 (LensTec®)
Acri.Lisa (Acri.Tec®)
Single piece, acrylic (26% water content), square edge optic, implantable with injector through microincision
Optic Diameter : 5.75mm / Haptic Diameter : 11.50mm / Haptics : Tetraflex, 5° angle
A constant : 118.0
Diopter Range :
D arası with 1.00 D steps
and D with 0.5D steps
D with 0.2D steps
Anterior movement within the capsule, independent from the vitreous pressure
ASCRS 2009

5. Methods
Group 1 : Kellan Tetraflex KH3500 (LensTec®) IOL was implanted in 17 eyes of 10 patients
Group 2 : Acri.Lisa (Acri.Tec®) IOL was implanted in 20 eyes of 10 patients
Refractive spherical equivalent (SE), best uncorrected/corrected distance visual acuity (UCVA, BCVA), uncorrected near visual acuity (UCNVA) with Jaeger chart, and complications were evaluated.
ASCRS 2009

6. Results Group 1 Preoperatively Postoperatively
Mean SE : +2,38 ± 1,22D (+0,38D - +4,50D)
Mean distance UCVA : 0,25 ± 0,12
Mean distance BCVA : 0,65 ± 0,31
Postoperatively
Mean SE : -0,39 ± 0,63D (-1,75D - +0,75D)
Mean distance UCVA : 0,89 ± 0,16
Mean distance BCVA : 0,98 ± 0,07
UCNVA : J1 in 15 eyes (88,24%), J3 in 2 eyes (11,76%)
In 3 eyes, Nd:YAG laser posterior capsulotomy was done at the 2nd month
In 1 eye, IOL exchange was done due to haptic break

7. Results Group 2 Preoperatively Postoperatively
Mean SE : -0,08 ± 4,07D (-9,00D - +4,25D)
Distance UCVA : 0,13 ± 0,21
Distance BCVA : 0,50 ± 0,34
Postoperatively
Mean SE : –0,50 ± 0,49D (-1,50D - 0,00D)
Distance UCVA : 0,83 ± 0,18
Distance BCVA : 0,97 ± 0,06
UCNVA : J1 in 16 eyes (80%), J2 in 4 eyes (20%)
In 1 eye, unilateral LASIK due to residual myopia
Two patients complained of severe dysphotopsia

8. Results
Early postoperative results were statistically similar between two groups (p>0.05 for all).
Patients reported higher satisfaction of uncorrected near vision in Group 2.
ASCRS 2009

9. Conclusion Factors that should be evaluated in long term :
Development of neuroadaptation for dysphotopsia in multifocal IOL group
Maintenance of the accommodative function in the accommodative group
Effects of posterior capsule opacification in both groups
ASCRS 2009