Alignment of toric IOL via automated femtosecond laser-assisted capsular marks

Session Details

Session Title: Advanced Optic IOLs

Session Date/Time: Tuesday 17/09/2019 | 08:30-10:30

Paper Time: 10:08

Venue: Free Paper Forum: Podium 1

First Author: : K.Klabe GERMANY

Co Author(s): :    D. Breyer   H. Kaymak   P. Hagen   T. Ax   F. Kretz   G. Auffarth              

Abstract Details

Purpose:

Via novel laser capsulotomy patterns the implantation axis markings can now be incorparated as opposing tabs on the capsulotomy edge allowing for an accurate matching between IOL- and implantation axis. The aim of this retrospective analysis was to evaluate the intraoperative and the postoperative IOL-axis alignment.

Setting:

All surgeries were performed at the Breyer-Kaymak-Klabe Eye Surgery & Premium Eyes in Duesseldorf, Germany, which is part of the International Vision Correcton Research Center (IVCRC.net).

Methods:

We included 70 eyes (consecutive cases) with cataract surgery or refractive lens exchange via FLACS by LENSAR with automated iris registration using Cassini LED keratography (i-Optics) and toric IOL axis alignment by capsular marks using IntelliAxis-L (LENSAR). Phacoemulsification and implantation of the toric IOL was performed. 75% of IOLs were toric Lentis LS-313 MF15 while the rest of toric IOLs was distributed among several other IOL models. Directly after surgery as well as 3 months postoperatively the eye was photographed such that intraoperative misalignment and postoperative rotation could be determined.

Results:

The intraoperative alignment error was 0.83°+-0.86° which is roughly half as much as the recently reported literature-value 1.87°+-2.11° using the manual marking technique (Inoue Y et al. Axis Misalignment of Toric Intraocular Lens: Placement Error and Postoperative Rotation. Ophthalmology. 2017 Sep;124(9):1424-25). The postoperative rotation was 0.53°+-5.01°. The correction index was 1.08+-0.32 and the index of success was 0.31+-0.30.

Conclusions:

From our data analysis we see a further reduction in intraoperative misalignment of toric IOLs by using femtosecond laser-assisted automated caspular marks. Data transfer, workflow and prevention of read-off errors is better with IntelliAxis-L.

Financial Disclosure:

None