Posters

Endothelial changes, corneal thickness, and anterior chamber flare following Nd:YAG laser capsulotomy

Poster Details

First Author: H.Ben Amor TUNISIA

Co Author(s):    S. Khochtali   A. Bouabana   N. Abroug   B. Jelliti   S. Zaouali   M. Khairallah     

Abstract Details

Purpose:

To study corneal endothelium changes, corneal thickness and anterior chamber flare following Nd: Yag laser capsulotomy.

Setting:

Department of Ophthalmology, Fattouma Bourguiba University Hospital, Monastir, Tunisia.

Methods:

A prospective study including 35 patients (36 eyes) that underwent Nd:Yag laser capsulotomy. All patients had a complete ophthalmological examination, a laser flare photometry and a noncontact specular microscopy at enrollment and at 1 day, 1 week, 1 month, 3 months and 6 months following the Nd: Yag laser capsulotomy. The patients received topical dexamethasone (4 times a day) and timolol drops (2 times a day) for 7 days.

Results:

Mean initial visual acuity was 20/100. The mean energy used was 3 +/- 0.7 mJ. The mean total energy was 127, 7+/-97, 9 mJ. Visual acuity significantly improved to 20/32 (p<10-3). Intraocular pressure did not show any significant changes during follow-up. Anterior chamber flare significantly rose at 1 day (p=0,002). Anterior chamber flare at 6 months was significantly lower when the total delivered energy was less than 80 mJ (versus ≥ 80 mJ). Endothelial cell density, coefficient of variance and percentage hexagonality showed no significant changes during follow-up. Central corneal thickness increased significantly at 1 day.

Conclusions:

Nd: Yag laser capsulotomy results in a transient elevation of anterior chamber flare and central corneal thickness. It does not seem to induce an endothelial cell loss at 6 months. Less total delivered energy during the procedure is associated with less breakdown of the blood-aqueous barrier.

Financial Disclosure:

None