Hardten D R, Lindstrom R L
Phillips Eye Institute Center for Teaching and Research, Minneapolis, Minnesota.
Klin Monbl Augenheilkd. 1994 Nov;205(5):259-65. doi: 10.1055/s-2008-1045525.
Photorefractive keratectomy using the VISX 2015 193-nm excimer laser was performed on 134 consecutive eyes of 97 myopic patients by the two authors. Preoperative refractive errors (spherical equivalent) ranged from -1.63 to -14.25 diopters (D) (mean, -5.76 +/- 2.40 D). Follow-up of 6 months was available on 110 eyes. At six months, the average residual refractive error was +0.16 +/- 1.13 D (range -2.88 to +3.38). Correction within 1 D of that attempted was obtained in 77 eyes (70%). Uncorrected visual acuity of 20/40 or better was achieved in 89 eyes (81%), and 20/25 or better in 54 eyes (49%).
At one year, follow up was available on 57 eyes. The average residual refractive error was -0.22 +/- 0.87 D (range -3.00 to +2.00 D). Correction within 1 D was achieved in 47 eyes (82%). Visual acuity was 20/40 or better uncorrected in 50 eyes (88%), and 20/25 or better in 35 eyes (61%). One patient lost three lines of best corrected visual acuity and 4 patients lost 2 lines of best corrected visual acuity from corneal haze or irregular astigmatism, while all other patients returned to 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 a useful treatment modality for the reduction of low to moderate myopia.
两位作者对97例近视患者的134只眼睛连续进行了使用VISX 2015 193纳米准分子激光的光性屈光性角膜切削术。术前屈光不正（等效球镜）范围为-1.63至-14.25屈光度（D）（平均，-5.76±2.40 D）。对110只眼睛进行了6个月的随访。6个月时，平均残余屈光不正为+0.16±1.13 D（范围为-2.88至+3.38）。77只眼睛（70%）的矫正度数在预期矫正度数的1 D范围内。89只眼睛（81%）的未矫正视力达到20/40或更好，54只眼睛（49%）的未矫正视力达到20/25或更好。
1年时，对57只眼睛进行了随访。平均残余屈光不正为-0.22±0.87 D（范围为-3.00至+2.00 D）。47只眼睛（82%）的矫正度数在1 D范围内。50只眼睛（88%）的未矫正视力为20/40或更好，35只眼睛（61%）的未矫正视力为20/25或更好。1例患者因角膜混浊或不规则散光导致最佳矫正视力下降了3行，4例患者下降了2行，而所有其他患者的最佳矫正视力在术前最佳矫正视力的1行范围内恢复。
193纳米准分子激光光性屈光性角膜切削术似乎是一种用于降低低度至中度近视的有效治疗方式。
