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Topography-guided femtolaser-assisted LASIK for myopia and myopic astigmatism

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Session Details

Session Title: LASIK: Flap Morphology and Ablation Profile

Session Date/Time: Monday 09/10/2017 | 08:30-10:20

Paper Time: 09:34

Venue: Room 3.6

First Author: : O.Ziiatdinova RUSSIA

Co Author(s): :                        

Abstract Details


To evaluate the long-term refractive outcomes in patients undergoing femtoLASIK with topography-guided ablation algorithms using the WaveLight® Refractive Suite.


Eye Surgery Rascheskov, Kazan, Russia


A retrospective 12 -month follow-up study was conducted of 300 eyes undergoing femtoLASIK. The WaveLight FS200 femtolaser EX500 excimer laser and treatment planning software were used. 150 eyes underwent Custom-Q ablation and 150 eyes underwent topography-guided ablation. Mean preoperative manifest refractive spherical equivalent (MRSE) was -4.9┬▒3.45 diopters (D) (range: -12.125 to -1.875 D) in the Custom-Q group and -5.8┬▒3.94 D (range: -12.875 to -1.875 D) in the topography-guided group. Eyes with cylinder more than 0.75 D were treated with cyclotorsia.


At 12 months postoperatively, mean MRSE was 0.08 D for the Custom-Q group and 0.07 for the topography-guided group. Stability was similar in both groups as were visual outcomes. No eyes lost 2 or more lines of BSCVA at 6 months postoperatively or later.


Refractive outcomes were equivalent between eyes that underwent Custom-Q guided femtoLASIK and those that underwent topography-guided femtoLASIK. Both algorithms achieved good visual functions.

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