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The features of the femtosecond laser system flap creation process on the eye after radial keratotomy.

Poster Details

First Author: O.Ziiatdinova RUSSIA

Co Author(s):                  

Abstract Details


To observe the features of the femtosecond laser system flap creation LASIK for the treatment of refractive errors after radial keratotomy.


A 40-year-old woman underwent customized topoguided femtoLASIK surgery on the right eye 25 years after 8-cut radial keratotomy (RK) on both eyes. The cuts have medium intensity and a depth of about 330 mkm. A full ophthalmic assessment was performed before femtosecond LASIK. Postoperative retreatments were also noted.


The WaveLight FS200 femtosecond laser (Alcon) was used to create LASIK flap. The flap diameter was 9 mm and the depth was 120 mkm. The parameters of the FS200 were vacuum 2, rate 644 mbar, and the pulse energy bed and side cuts 0.82 mJ. The WaveLight EX500 excimer laser was used to perform the customized topoguided ablation in the eye after the initial RK. No intra- or postoperative complications were observed. The docking into the eye and femtosecond laser system flap creation process went smoothly. The flap lifting and reposition were also with standard technique. The flap subjectively had regular thickness. Study results showed that the eye after 8-cut RK with medium intensity scars would not have complications with femtosecond laser system flap creation process. The flap could be regular and wouldn't have problems with lifting and reposition.


Femtosecond flap LASIK procedure could be used for correcting the refractive errors in eyes with previous radial keratotomy . Creating the flap with the femtosecond laser, flap lifting and repositioning in eye after 8-cut radial keratotomy with medium intensity scars would performed within standard technique.



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