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Kristin Hirabayashi, Marjan Farid, Matthew Wade, Sumit Garg, Roger F Steinert; Femtosecond Laser Zig-Zag Deep Anterior Lamellar Keratoplasty for the Treatment of Corneal Stromal Pathology. Invest. Ophthalmol. Vis. Sci. 2014;55(13):3125.
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© ARVO (1962-2015); The Authors (2016-present)
To determine outcomes and efficacy of femtosecond laser zig-zag deep anterior lamellar keratoplasty (DALK).
A retrospective analysis of 31 femtosecond laser zig-zag DALK cases on 29 patients was performed. Outcomes including corrected distance visual acuity (CDVA), topographic and manifest astigmatism, and complications were reviewed.
Full big bubble baring of Descemet’s membrane (DM) was achieved in 29 cases. For those eyes, at post-operative month 6, the average CDVA was LogMar 0.26 (20/36 Snellen acuity), mean topographic astigmatism was 3.7 D (range 1.1-6.6 D), and mean manifest astigmatism was 2.6 D (range 0-5.5 D). These outcomes were maintained or improved throughout the follow up period out to 3.5 years. One case had a repeat DALK due to stromal rejection.
Femtosecond laser zig-zag DALK results in early and stable excellent visual recovery and post-operative astigmatism. For eyes with healthy endothelium, this technique offers the advantage of avoiding the risk of endothelial rejection without compromising the optical performance.
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