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

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

Purpose:

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)

Setting:

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

Methods:

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.

Results:

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).

Conclusions:

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