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Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Sci+Rep 2016 ; 6 (ä): ä Nephropedia Template TP
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Early outcomes after small incision lenticule extraction and photorefractive keratectomy for correction of high myopia #MMPMID27601090
Chan TCY; Yu MCY; Ng A; Wang Z; Cheng GPM; Jhanji V
Sci Rep 2016[]; 6 (ä): ä PMID27601090show ga
We prospectively compared visual and refractive outcomes in patients with high myopia and myopic astigmatism after small-incision lenticule extraction (SMILE) and photorefractive keratetctomy (PRK) with mitomycin C. Sixty-six eyes of 33 patients (mean age, 29.7?±?5.6?years) were included (SMILE: 34 eyes, PRK 32 eyes). Preoperatively, no significant difference was noted in manifest spherical equivalent (p?=?0.326), manifest sphere (p?=?0.277), and manifest cylinder (p?=?0.625) between both groups. At 1?month, there were significant differences in logMAR uncorrected distance visual acuity, efficacy index and manifest refraction spherical equivalent between SMILE and PRK (p???0.029). At 6?months, the logMAR corrected distance visual acuity (p?=?0.594), logMAR uncorrected visual acuity (p?=?0.452), efficacy index (p?=?0.215) and safety index was (p?=?0.537) was comparable between SMILE and PRK. Significant differences were observed in postoperative manifest spherical equivalent (p?=?0.044) and manifest cylinder (p?=?0.014) between both groups. At the end of 6?months, 100% of the eyes in SMILE group and 69% of the eyes in PRK group were within ±0.50?D of the attempted cylindrical correction. The postoperative difference vector, magnitude of error and absolute angle of error were significantly smaller after SMILE compared to PRK (p???0.040) implying a trend towards overcorrection of cylindrical correction following PRK.