Topography-guided ablation for the management of myopic astigmatism

Session Details

Session Title: LASIK

Session Date/Time: Monday 12/09/2016 | 08:00-10:30

Paper Time: 09:24

Venue: Hall C3

First Author: : M.Hosny EGYPT

Co Author(s): :    A. Ahmed                    

Abstract Details

Purpose:

to evaluate topography guided ablation profile for the treatment of simple , compound and mixed astigmatism

Setting:

Dar El Oyoun Specialized Eye Hospitals, Egypt

Methods:

40 eyes with astigmatism ranging from 1.5-4.5D , with or without spherical errors ranging fromn +2 to -6D where enrolled. All underwent Femto assisted Lasik using the Wavelight FS200 femtolaser and the Alcon Wavelight EX500 Excimer laser. All eyes were treated using the T-CAT topography based algorithms. All had a preoperative workup that included scheimpflug imaging ,topography ,Q value recording ,BCVA and UCVA. All intended postoperative Qvalues was aimed at -0.40. All eyes had the same evaluation 6 weeks postoperatively.

Results:

All eyes were within +/_ 0.5 Diopters SE. All had good postoperative topographies with a mean Q value of -0.22. All eyes had an UCVA of 1.0.

Conclusions:

Topography based algorithms are accurate and effective in the treatment of naturally occuring 'virgin'astigmatism and should not be only preserved for irregular corneas or those with previous complicated corneal surgeries.

Financial Disclosure:

NONE