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Outcome of top hat pattern femtosecond laser assisted keratoplasty versus conventional penetrating in patients with keratoconus

Poster Details

First Author: H.Ibrahim EGYPT

Co Author(s):    M. Seif   A. Tawfik           

Abstract Details

Purpose:

: The aim of this study was to compare the outcomes of top hat pattern femtosecond laser-assisted keratoplasty (FLAK) with those of conventional penetrating keratoplasty (PKP) in eyes with keratokonus.

Setting:

Zagazig - Egypt

Methods:

A prospective comparative study included 80 eyes with advanced keratoconus classified into two groups: group (1) comprised of 40 eyes underwent top hat pattern femtosecond laser-assisted keratoplasty and group (2) comprised of 40 eyes underwent conventional penetrating keratoplasaty. Along a period of three years between February 2010 and January 2013, and a postoperative follow-up period of one year was performed. A preoperative and postoperative manifest refraction, uncorrected and best corrected visual acuity, Biomicroscopic examinations were done to record healing and complications. Data were tabulated and statistically analyzed.

Results:

The mean preoperative spherical refraction in both groups was quite similar; -5.12 ± 1.3 and -5.85±1.6 in groups (1) , (2) respectively, while the mean manifest cylinder was -6.26±2.1 and -7.18±2.3 in groups (1) , (2) respectively. After the follow-up period the mean spherical refractions were -2.8±0.13 and -1.95±0.62 in groups (1) , (2) respectively, while the mean manifest cylinder was -2.6±2.1 and -1.01±0.21 in groups (1) , (2) respectively. This was statistically significant (P=0.02) indicating that FLAK had better results.

Conclusions:

: Top hat pattern femto-second laser-assisted keratoplasty (FLAK) is a promising safe technique for management of patients with keratoconus with less astigmatism and milder complications when compared to conventional penetrating keratoplasty and had better postoperative BCVA.

Financial Disclosure:

NONE

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