Using small-aperture optics to treat post-corneal-refractive-surgery patients with cataracts

Session Details

Session Title: New IOL Optic Design

Session Date/Time: Tuesday 17/09/2019 | 16:30-18:00

Paper Time: 17:08

Venue: Free Paper Forum: Podium 1

First Author: : R.Zaldivar ARGENTINA

Co Author(s): :                                 

Abstract Details

Purpose:

To evaluate visual performance and ease of use of a small aperture IOL in cataract patients with a history of corneal refractive surgery

Setting:

Single site. Instituto Zaldivar, Mendoza Argentina

Methods:

Retrospective analysis of 20 patients presenting for cataract surgery with a history of prior corneal refractive surgery. Prior corneal refractive surgery includes hyperopic and myopic laser vision correction (n=10) and radial keratotomy (N=10). Patients were implanted either contralaterally with an IC-8 IOL (AcuFocus) in one eye and a monofocal IOL in their fellow eye. IC-8 IOL eyes were targeted for -0.75 D and their fellow monofocal eyes targeted for plano. Uncorrected visual acuity, total corneal higher order aberrations, and manifest refractive surgical equivalent (MRSE) were evaluated.

Results:

Preoperative total higher order aberrations were 0.5 um + 1 um. Mean achieved MRSE in the IC-8 IOL eyes was -1 D + 1.5 D and 0.5 D + 1.0 in the fellow monofocal IOL eyes. For uncorrected near, intermediate and far visual acuities, patients achieved 0.2logMAR + 0.2, 0.1 logMAR + 0,2 and 0.2 logMAR + 0.3, respectively.

Conclusions:

The combination of a small aperture IOL and a monofocal IOL provides prior corneal refractive patients with reliable extended depth of focus and effectively compensates for presence of corneal higher order aberrations.

Financial Disclosure:

research is funded, fully or partially, by a competing company