Talley A R, Sher N A, Kim M S, Doughman D J, Carpel E, Ostrov C, Lane S S, Parker P, Lindstrom R L
Phillips Eye Institute, Minneapolis, Minnesota.
J Cataract Refract Surg. 1994 Mar;20 Suppl:239-42. doi: 10.1016/s0886-3350(13)80760-2.
As part of a Phase III clinical trial, photorefractive keratectomy using the VISX 2015 193 nm excimer laser was performed on 91 sighted eyes of 91 patients. Preoperative refractive errors (spherical equivalent) ranged from -1.00 diopters (D) to -7.50 D (mean -4.11 D +/- 1.43 D). At six months, average residual refractive error was 0.02 D +/- 0.64 D (range -2.21 D to +1.38 D). Ninety-three percent of eyes were within 1.00 D of attempted correction, 93% had uncorrected visual acuity of 20/40 or better, and 72% achieved uncorrected visual acuity of 20/25 or better. All patients returned to their best corrected visual acuity within one line of their preoperative best corrected visual acuity. Photorefractive keratectomy with the 193 nm excimer laser appears to be useful in reducing low to moderate myopia.
作为一项III期临床试验的一部分，使用VISX 2015 193纳米准分子激光对91例患者的91只视力正常的眼睛进行了准分子原位角膜磨镶术。术前屈光不正（等效球镜度）范围为-1.00屈光度（D）至-7.50 D（平均-4.11 D +/- 1.43 D）。六个月时，平均残余屈光不正为0.02 D +/- 0.64 D（范围为-2.21 D至+1.38 D）。93%的眼睛屈光矫正偏差在1.00 D以内，93%的患者未矫正视力达到20/40或更好，72%的患者未矫正视力达到20/25或更好。所有患者的最佳矫正视力均恢复到术前最佳矫正视力的一行以内。使用193纳米准分子激光进行准分子原位角膜磨镶术似乎有助于降低低度至中度近视。
