Abstract
The purpose of our study was to evaluate the safety, effectiveness, predictability, and stability of myopic and astigmatic laser-assisted in situ keratomileusis (LASIK) with simultaneous prophylactic corneal cross-linking (CXL) in thin corneas. In total, 100 eyes from 50 patients who were subjected to myopic and astigmatism femtosecond LASIK with simultaneous prophylactic CXL were included. The design of the study was retrospective, longitudinal, and observational. All patients had a 48-month follow-up. The MEL 80 excimer laser was utilized with the Aberration Smart Ablation platform. CXL treatment was applied when the predicted stromal thickness was less than 330 µm. Patients’ mean age was 30.22 ± 5.97 years. Previous mean spherical equivalent was −5.50 ± 1.65 (−9.50 to −1.13) diopters (D). Postoperative mean spherical equivalent was −0.24 ± 0.29 (−0.85 to +0.50) D. Visual acuity (VA) of 20/20 or better was observed in 87% of the eyes and no eyes experienced VA loss. Spherical equivalent within ±0.50 D was observed in 93% of eyes, and 4% of eyes varied by 0.50 D or more between 3 and 48 months. Prophylactic corneal cross-linking with simultaneous femtosecond laser-assisted in situ keratomileusis in thin corneas proved to be effective, safe, and predictable. The results remained stable after 48 months of follow-up.
Highlights
Introduction iationsLaser-assisted in situ keratomileusis (LASIK) is the most common and well-known refractive surgery procedure [1]
100 eyes from 50 patients who were subjected to myopic and astigmatism femtosecond laser-assisted in situ keratomileusis (LASIK) with simultaneous prophylactic
The aim of our study was not to compare CXL–LASIK versus other procedures that may be indicated in low residual stromal bed (RSB) eyes, such as phakic intraocular lens (IOL) or surface ablation, the reported literature stated above along with our results prove that LASIK–CXL is a safe option in patients with risk of Post-LASIK ectasia (PLE)
Summary
Laser-assisted in situ keratomileusis (LASIK) is the most common and well-known refractive surgery procedure [1]. Iatrogenic ectasia and refractive regression remain some of the main research concerns [2]. Post-LASIK ectasia (PLE) is an unusual serious complication that could take place early on or up to several years following the refractive surgery procedure. It is ordinary following high myopic correction, even though it can happen following hyperopic treatment [3]. Refractive regression and iatrogenic ectasia are well-known complications as a consequence of structural changes after LASIK. PLE risk factors comprise high myopia or hyperopia, thin central corneal
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