Ophthalmic Research
Research Article
Visual Outcomes after Small Incision Lenticule Extraction and Femtosecond Laser-Assisted LASIK for High MyopiaYang W.a · Liu S.b · Li M.c,d,e · Shen Y.c,d,e · Zhou X.c,d,eaDepartment of Ophthalmology and Optometry, Children’s Hospital of Fudan University, Shanghai, China
bJiangxi Research Institute of Ophthalmology and Visual Sciences, Department of Affiliated Eye Hospital of Nanchang University, Nanchang, China cDepartment of Ophthalmology and Optometry, Eye and ENT Hospital, Fudan University, Shanghai, China dNHC Key Laboratory of Myopia, Fudan University, Shanghai, China eShanghai Research Center of Ophthalmology and Optometry, Shanghai, China |
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Article / Publication Details
Received: July 22, 2019
Accepted: October 22, 2019
Published online: December 05, 2019
Issue release date: July 2020
Number of Print Pages: 7
Number of Figures: 5
Number of Tables: 2
ISSN: 0030-3747 (Print)
eISSN: 1423-0259 (Online)
For additional information: https://www.karger.com/ORE
Abstract
Purpose: The aim of this study was to compare visual outcomes after small incision lenticule extraction (SMILE) and femtosecond laser-assisted in situ keratomileusis (FS-LASIK) for high myopia. Methods: In this prospective, comparative study, a total of 52 eyes of 34 consecutive highly myopic patients with spherical equivalent within the range of –8.00 to –10.00 diopters were recruited. Twenty-three eyes of 16 patients were in the FS-LASIK group and 29 eyes of 18 patients were in the SMILE group. Visual outcomes and wavefront aberrations were analyzed preoperatively and 6 months postoperatively. Results: At the postoperative 6-month visit, 96.6% in the SMILE group and 91.3% in the FS-LASIK group achieved unchanged or better corrected distance visual acuity (CDVA). As for uncorrected distance visual acuity (UDVA), 96.6% in the SMILE group and 95.7% in the FS-LASIK group achieved UDVA of 20/20 or better. As for wavefront aberrations, high-order aberrations (HOAs) and spherical aberrations increased significantly after surgery in both groups relative to corresponding preoperative values (p < 0.001), and vertical coma increased after SMILE (p < 0.001). No statistically significant differences in changes of HOAs (p =0.90), spherical aberrations (p = 0.07), horizontal coma (p = 0.56), coma (p =0.08), horizontal trefoil (p =0.19), vertical trefoil (p = 0.90), and trefoil (p = 0.45) were detected between the 2 groups, except for vertical coma (p < 0.01). Conclusions: SMILE is as effective as FS-LASIK in correcting high myopia, but attention should be paid to the induction of vertical coma in highly myopic patients following a SMILE procedure.
© 2019 S. Karger AG, Basel
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Article / Publication Details
Received: July 22, 2019
Accepted: October 22, 2019
Published online: December 05, 2019
Issue release date: July 2020
Number of Print Pages: 7
Number of Figures: 5
Number of Tables: 2
ISSN: 0030-3747 (Print)
eISSN: 1423-0259 (Online)
For additional information: https://www.karger.com/ORE
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