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Evaluation of IOL stability using a novel capsulorhexis-enclaved IOL design compared to a commonly used IOL in-the-bag design: a randomised controlled trial

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Session Details

Session Title: New IOLs: Material & Preload IOL

Session Date/Time: Monday 24/09/2018 | 08:00-10:30

Paper Time: 09:30

Venue: Room A3, Podium 2

First Author: : V.Webers THE NETHERLANDS

Co Author(s): :    C. Veldhuizen   R. Nuijts                 

Abstract Details


To determine the postoperative IOL stability in terms of decentration (horizontal and vertical), rotation, and tilt comparing a capsulorhexis-enclaved IOL (FEMTIS Laser Lens, Oculentis) versus a commonly used IOL in the bag design (Acrysof SN60WF, Alcon)


Single-centre randomized controlled trial performed at the University Eye Clinic Maastricht, the The Netherlands


A total of forty eyes with senile cataract, who required cataract surgery, were randomly assigned to either the FEMTIS group or the SN60WF group. In all patients, a 5,2 mm capsulorhexis was performed using a femtosecond laser (LenSx, Alcon). The primary outcome IOL decentration (horizontal, vertical, and total) by using postoperative images taken immediately after surgery and at several follow-up moments (1 week, 5 weeks, and 13 weeks). Secondary outcomes were to compare the rotation stability and amount of IOL tilt between both groups.


Preoperatively both groups were comparable in terms of CDVA, corneal astigmatism, and axial length. The mean horizontal and vertical decentration was significantly lower (p-value both <.05) in the FEMTIS group (respectively 0.06 ± 0.04 and 0.06 ± 0.02mm) compared to the SN60WF group (respectively 0.14 ± 0.14 and 0.17 ± 0.13mm). Furthermore, a significant lower absolute magnitude of decentration was seen in the FEMTIS group (0.09 ± 0.04mm) compared to the SN60WF group (0.26 ± 0.12mm). Finally, the FEMTIS group showed significantly lower postoperative rotation compared to the SN60WF group (respectively 0.86 ± 0.74 vs. 2.03 ± 0.85 degrees, p<.05).


These data showed a significant better IOL stability using a capsulorhexis-enclaved IOL design compared to a commonly used IOL in the bag design in terms of decentration- and rotation stability. This may have applications in optimizing clinical outcomes when using toric and multifocal IOLs.

Financial Disclosure:

... receives consulting fees, retainer, or contract payments from a competing company, ... research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented

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