Posters

The effects of corneal cross-linking on intraocular pressure measurement in keratoconus

Poster Details

First Author: D.Fofana MOROCCO

Co Author(s): Y. Sami   M. Bentouhmi   A. Mchachi   L. Benhmidoune   R. Rayad   M. Elbelhadji     

Abstract Details

Purpose:

The aim of our study is to determine the possible changes of IOP measurements by Goldmann aplanation tonometer (TAG), after treatment with CXL on corneas with keratoconus.

Setting:

Adult ophthalmology service. Hospital August 20, 1953. UHC Ibn Rochd. Casablanca

Methods:

We measured intraocular pressure with TAG before crosslinking and 3, 6 and 12 months after cross-linking on 54 eyes (47 patients) with keratoconus.

Results:

There was a significant increase in IOP at 3, 6 and 12 months after CXL (p <0.001). The mean IOP before cross-linking was 11.7 mmHg, whereas it was 12.8 mmHg at 3 months, 12.9 mmHg at 6 months and 12.95 mmHg at 12 months. We also found a direct correlation between central corneal thickness and IOP after cross-linking. In contrast, there was no significant correlation between IOP change after CXL and  age, gender or pre-CXL keratometry.

Conclusions:

Our study found a significant increase in IOP measurements with TAG on keratoconic corneas after CXL. This is probably due to the increase in corneal stiffness and would not be a real rise in IOP.

Financial Disclosure:

... gains financially from competing product or procedure, ... travel has been funded, fully or partially, by a company producing, developing or supplying the product or procedure presented, ... research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented, ... receives non-monetary benefits from a company producing, developing or supplying the product or procedure presented, ... receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented, ... is employed by a competing company, ... has significant investment interest in a company producing, developing or supplying product or procedure presented