Four-year observation of predictability and stability of small incision lenticule extraction
نویسندگان
چکیده
BACKGROUND To investigate long-term refractive outcomes, wavefront aberrations and quality of life after small incision lenticule extraction (SMILE) for moderate to high myopia. METHODS A total of 26 patients (47 eyes) with preoperative mean spherical equivalent (SE) of -6.30 ± 1.47 diopters (D) who underwent SMILE were recruited. The measurements included uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), manifest refraction, wavefront aberrations, and quality of life. RESULTS At 4 years postoperatively, UDVA was better than or equal to 20/20 in 92 % of eyes. The efficacy index was 1.07 ± 0.16. 89 % of eyes were within ± 0.5 D of the intended refractive target. No eye lost any Snellen lines. The safety index was 1.16 ± 0.14. No significant changes of SE occurred among postoperative follow-ups at months 1, 3, 6 and years 1, 2, 4 (P > 0.05, Scheffe test). Higher-order aberrations, coma, spherical aberration and higher-order astigmatism increased postoperatively, and no significant changes of aberrations were detected among the 1-month, 6-month or 4-year follow-ups postoperatively (37 eyes). Compared to the spectacles group, the surgery group showed a significantly higher total score on quality of life (45.71 ± 2.61 vs 39.96 ± 3.56, P < 0.001). CONCLUSIONS SMILE provides a predictable and stable correction of moderate to high myopia as documented by long-term follow-up.
منابع مشابه
Efficacy, safety, predictability, contrast sensitivity, and aberrations after femtosecond laser lenticule extraction.
PURPOSE To compare femtosecond lenticule extraction and small-incision lenticule extraction to treat moderate to high myopia. SETTING Department of Ophthalmology, Aarhus University Hospital, Aarhus, Denmark. DESIGN Prospective clinical single-masked paired-eye study. METHODS An intrastromal lenticule was cut by a femtosecond laser and manually extracted. In femtosecond lenticule extractio...
متن کاملVisual and refractive outcomes of small incision lenticule extraction for the correction of myopia: 1-year follow-up
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PURPOSE To compare the efficacy of correcting myopic astigmatism with femtosecond laser small-incision lenticule extraction (SMILE, Carl Zeiss Meditec AG) versus laser-assisted subepithelial keratectomy (LASEK). SETTING The study was conducted at the Ophthalmology Department, Eye and ENT Hospital, Shanghai, China. DESIGN A retrospective, cross-sectional study. METHODS This study included ...
متن کاملAuthor ' s response to reviews Title : Efficacy , predictability , and safety of small incision lenticule extraction : prospective cohort study
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Outcomes of small incision lenticule extraction (SMILE) in low myopia.
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عنوان ژورنال:
دوره 16 شماره
صفحات -
تاریخ انتشار 2016