Posters

Assessment of the tomographic values in keratoconic eyes after collagen cross-linking procedure

Poster Details

First Author: S. Sefic-Kasumovic BOSNIA AND HERZEGOVINA

Co Author(s):    A. Kasumovic   H. Basic   M. Mavija   E. Cabric           

Abstract Details

Purpose:

This study aimed to investigate the differences in values of K1 and K2 readings, the central corneal thickness (PAH ) before the collagen crosslinking procedure (CXL) and 3, 6, 12 months later.

Setting:

The study was done at Eye Policlinic 'Dr.Sefić' in Sarajevo, BiH. We used WaveLight Allegro Oculyzer produced by Alcon (corneal biomechanical parameters).

Methods:

64 eyes were evaluated in retrospective cross sectional study. The corneal biomechanical parameters were taken with WaveLight Allegro Oculyzer produced by Alcon before the CXL , 3,6, 12 months after the procedure. The curvature of K1 reading and K2 reading were taken and the central corneal thickness were considered due to the time after CXL.

Results:

The value of K1 reading before the treatment was 48,8 diopters and was statistically significant lower compering to the value of K1 3 months after the CXL procedure 46,30 D (p=0,0006), K1 reading one year post CXL was 47,20 D (p=0,002). K2 reading before the CXL was 52,65 D, 3 months after the procedure was 51,4, 6 months later 48,55 D, 12 months later 51,30 D. There is statistically significant lower value of K2 reading 6 months after the treatment comparing to the values 3 months postoperatively(p=0,014). However there is significantly lower values of K2 reading 12 months postoperatively comparing to preoperative period(p=0,006).There is statistically significant lower values of pachymetry 12 months after CXL comparing to the values preoperatively (p=0.032).

Conclusions:

After CXL in keratoconic eyes there is significant decrease in central corneal thickness 3 and 6 months later but is almost the same 12 months later. However K2 (Kmax) reading is significantly changed 3 and 6 months later and is followed by changing of K1 reading.

Financial Disclosure:

NONE