Toric posterior chamber phakic intraocular lens implantation: visual results in keratoconic eyes vs non-keratoconic eyes

Session Details

Session Title: Primary and Secondary Ectasia

Session Date/Time: Sunday 23/09/2018 | 08:00-10:00

Paper Time: 09:36

Venue: Room A4

First Author: : D.Badoza ARGENTINA

Co Author(s): :    M. Cosentino   M. Doxastakis                 

Abstract Details

Purpose:

To compare refraction and visual acuity (VA) after toric posterior-chamber phakic intraocular lens implantation in keratoconic eyes versus non-keratoconic ones

Setting:

Instituto de la Visión, Buenos Aires, Argentina

Methods:

We retrospectively analyzed VA, sphere, cylinder and spherical equivalent (SE), and complications in 30 eyes with keratoconus (Group 1) and 35 eyes with non-keratoconic corneas (Group 2) after implantation of posterior chamber phakic IOLs (Visian ICL). Minimum follow-up was 1 year. Age was 36.9±10.3 (group 1) and 34.9±8.8 (group 2). Follow-up (months) was 29.5±18.5 (group 1) and 40.2±23.1 (group 2). In group 1, 16 eyes (43.3%) had corneal procedures performed at least 6 month prior to ICL implantation (13 were Corneal cross-linking only). According to Amsler-Krumeich classification, keratoconus grade was 2.4±0.9.

Results:

Preoperative SE and cylinder were -8.5±5.1 and -3.8±2.3D D (group 1), -10.7±3.6 and -1.6±1.4 in group 2, respectively. Postoperative SE and cylinder were -0.44±1.2 D and -0.9±1.7D (group 1), -0.6±1.0 and -0.48±0.5 in group 2, respectively (p > 0.1). Preoperative UCVA was less than 0.1 in all the cases, while BCVA was 0.5±0.2 (Group 1) and 0.76±0.2 (group 2). Postoperative UCVA was 0.65±0.2 (group 1) and 0.74±0.3 (group 2). Postoperative BCVA 0.80±0.2 and 0.95±0.1 (group 2). Student’s T test was >0.01. No complications were detected

Conclusions:

Implantation of toric posterior-chamber phakic intraocular lens for treating high myopia and astigmatism in eyes with not advanced keratoconus is a procedure at least quite predictable, effective, and safe as in non-keratoconic eyes. Efficacy and Safety indexes were significantly higher in keratoconic eyes.

Financial Disclosure:

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