Abstract
PurposeThe aim of this study was to compare the results of intrastromal arcuate incisions (AIs) and transepithelial AIs to treat corneal astigmatism during femtosecond laser-assisted cataract surgery (FLACS). MethodsThis retrospective study included 20 patients with corneal astigmatism between 0.70 and 2.00 diopters (D) who underwent FLACS with concurrent intrastromal AIs in one eye and transepithelial AIs in the fellow eye. The main outcomes measures at 2-3months of follow-up were the difference between preoperative and postoperative keratometric corneal cylinder (Kcyl), the correction index (CI) and the percentage of overcorrection. ResultsThe mean difference between preoperative and postoperative Kcyl revealed a mean value of 0.36±0.37D in the transepithelial group and 0.53±0.42D in the intrastromal group (P<.001). The mean CI was 0.83±0.71 in the transepithelial group and 0.68±0.29 in intrastromal group (P=.17). Five eyes (25%) had an astigmatism overcorrection in the transepithelial group and 1eye (5%) in the intrastromal group. ConclusionsBoth intrastromal and transepithelial AIs showed potential for mild to moderate astigmatism correction and appeared to be a safe procedure. Despite transepithelial AIs presented a higher CI, the intrastromal AIs results were more predictable.
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