Journal article

Vector analysis of astigmatic correction after small-incision lenticule extraction and femtosecond-assisted LASIK for low to moderate myopic astigmatism

Tommy CY Chan, Alex LK Ng, George PM Cheng, Zheng Wang, Cong Ye, Victor CP Woo, Clement CY Tham, Vishal Jhanji

BRITISH JOURNAL OF OPHTHALMOLOGY | BMJ PUBLISHING GROUP | Published : 2016

Abstract

AIM: To compare astigmatic correction between femtosecond-assisted laser in situ keratomileusis (LASIK) and small-incision lenticule extraction (SMILE). METHODS: A total of 111 patients were included in this prospective study. Fifty-seven eyes were treated with LASIK and 54 eyes were treated with SMILE for myopia with low to moderate (-0.25 to -4.0 D) astigmatism. Uncorrected distance visual acuity (UDVA), corrected distance visual acuity and manifest refraction were measured preoperatively and at 1 and 3 months postoperatively. Visual and refractive outcomes were reported. Changes in refractive astigmatism were evaluated using vector analysis. RESULTS: Preoperative characteristics were simi..

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