Visual and Topographic Outcomes of Corneal Collagen Cross Linking for Post LASIK Ectasia

Overview

Journal Clin Ophthalmol

Publisher Dove Medical Press

Specialty Ophthalmology

Date 2022 Jun 27

PMID 35757019

Authors

Mohamed H Nasef

Sharif Y El Emam

Tamer I Haleem

Wesam S Shalaby

Waleed A Allam

Affiliations

Soon will be listed here.

Abstract

Purpose: To assess the topographic and visual outcomes of corneal cross-linking (CXL) for post-LASIK ectasia.

Methods: A retrospective case series of patients who had progressive post-LASIK ectasia, with at least 2 years of follow-up. They had epithelium-off CXL. Topographical and visual changes were recorded.

Results: The study included 21 eyes of 11 patients. At month 24, the final logMAR corrected distance visual acuity (CDVA) and spherical equivalent (SE) were stable compared to baseline (0.16, and -2.0 diopter (D), respectively). The final Kmean and Kmax were 42.5 and 47.4 D, respectively. Stability or improvement in CDVA, SE, and Kmax was seen in 17 eyes (81%). Significant corneal thinning was seen (438 vs 457 microns, = 0.003). Thinning by 2% or more was seen in 12 eyes (57.1%). Failure of CXL was seen in 4 eyes (19%). No other ocular complications were seen.

Conclusion: CXL for post LASIK ectasia is a safe and effective modality. Despite corneal thinning, there was stability or improvement in topographic parameters and CDVA over the 2-year follow-up period.

Citing Articles

Corneal Collagen Crosslinking for Ectasia After Refractive Surgery: A Systematic Review and Meta-Analysis.

Amaral D, Menezes A, Lima L, Faneli A, Neto P, Canedo A Clin Ophthalmol. 2024; 18:865-879.

PMID: 38525385 PMC: 10960511. DOI: 10.2147/OPTH.S451232.

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