McDonald M B, Liu J C, Byrd T J, Abdelmegeed M, Andrade H A, Klyce S D, Varnell R, Munnerlyn C R, Clapham T N, Kaufman H E
LSU Eye Center, Louisiana State University Medical Center School of Medicine, New Orleans 70112.
Ophthalmology. 1991 Sep;98(9):1327-37. doi: 10.1016/s0161-6420(91)32128-6.
Ten partially sighted and 19 normally sighted eyes underwent excimer laser photorefractive keratectomy for the correction of myopia. Nine of the partially sighted and 17 of the normally sighted eyes had 12 months of follow-up. Epithelial healing was complete in all eyes by day 6. None of the eyes had recurrent erosions, infections, or other medical complications. An increase in corneal haze after surgery was followed by a slow trend toward clearing. Average uncorrected visual acuity in the 7 normally sighted eyes with attempted corrections of 5 diopters (D) or less was 20/40 from month 2 on; the eyes with greater than 5 D attempted corrections had an average of 20/80--at month 2, which declined to 20/200--by month 6. Best spectacle-corrected visual acuity was within +/- 1 Snellen line of preoperative values in 14 of the normally sighted eyes, improved 2 or more lines in 2 eyes, and worsened two or more lines in two eyes. Hard contact lens overcorrection restored all of the two-line loss in 1 eye and 1 line of the 3-line loss in the other. Refraction and keratometry indicated corneal flattening without induced astigmatism.
对10只弱视眼和19只正常视力眼进行了准分子激光屈光性角膜切削术以矫正近视。其中9只弱视眼和17只正常视力眼进行了12个月的随访。所有眼睛在术后第6天时上皮愈合均已完成。无一例眼睛发生复发性糜烂、感染或其他医学并发症。术后角膜 haze 增加，随后有缓慢的消退趋势。7只试图矫正度数为5屈光度（D）或更低的正常视力眼，从第2个月起平均未矫正视力为20/40；试图矫正度数大于5 D的眼睛，在第2个月时平均为20/80，到第6个月时降至20/200。14只正常视力眼的最佳眼镜矫正视力在术前值的±1 Snellen 行内，2只眼提高了2行或更多行，2只眼下降了2行或更多行。硬性接触镜过矫恢复了1只眼中2行的视力下降和另1只眼中3行视力下降中的1行。验光和角膜曲率测量显示角膜变平且无诱导散光。
