Refractive lens exchange with trifocal intraocular lenses after previous corneal laser surgery

Session Details

Session Title: Premium IOLs: Multifocal, EDOF & Toric

Session Date/Time: Tuesday 25/09/2018 | 16:30-18:00

Paper Time: 16:42

Venue: Room A4

First Author: : L.Brenner NORWAY

Co Author(s): :    L. Brenner                    

Abstract Details

Purpose:

To evaluate the outcomes of refractive lens exchange (RLE) with trifocal intraocular lenses (IOL) after previous history of corneal laser surgery.

Setting:

Scandinavian–based private refractive surgery clinics, Memira.

Methods:

Multi-centric, multi-surgeon, single-protocol, single-IOL platform (FineVision trifocal (PhysIOL SA, Liege, Belgium) retrospective series of cases study. Lens power calculation was performed using the ASCRS calculator from 2015 to 2016 (Group Standard). From 2016 to 2017 the lens power was calculated after IOL constant optimization and the application of a nomogram (Group Optimized) to adjust for the standard myopic refractive error identified by the quality department. The refractive outcomes, such as UDVA, UNVA, spherical equivalent, precision, safety, and efficacy indices were assessed at the 3-months postoperative visit. Eyes with abnormal optics were considered unsuitable for multifocal IOL implants.

Results:

We included 212 eyes from 106 patients in this study (Group Standard: 130 eyes and Group Optimized: 82 eyes). The preoperative binocular CDVA LogMAR was -0.08 ± 0.06 and UNVA (American point-type) was 13.91 ± 9.14. The postoperative binocular UDVA was 0.01 ± 0.10 and UNVA was 5.07 ± 0.51. The mean refractive error was -0.29 ± 0.44 D for the standard group and -0.14 ± 0.39 D for the optimized group, with 71% and 87% of the eyes between ± 0.5 D, respectively. The safety and the efficacy index for all eyes was 0.97 and 0.77.

Conclusions:

The implantation of FineVision trifocal IOLs in selected cases of post-laser patients was safe and provided good uncorrected distance and near visual acuity. Postoperative refractive precision was higher when using the ASCRS calculator in combination with optimized constants and a nomogram for adjusting the myopic error observed in IOL power calculations.

Financial Disclosure:

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