准分子激光角膜切削术治疗近视的并发症

Complications of Photorefractive Keratectomy for Myopia

目的总结分析准分子激光角膜切削术治疗近视的并发症。方法应用雷赛公司Compak－200型准分子激光仪对196例382只近视眼行PRK治疗。按术前屈光度分二组：A组－1．00D—－6．00D，B组－6．00D～－10．00D．术后随诊6个月以上。结果有2．36％角膜上皮愈合延迟。低中度组和高度组各有8眼和7眼最佳视力下降1～3行，分别占2．72％和7．95％；过矫率在A、B组中分别是3．05％和4．69％．欠矫率为37．71％和32．81％；1级角膜上皮下混浊分别为10．96％和6．25％；2级混浊分别为0．61％和1．56％；3级混浊仅在A组出现1例1只眼，占0．34％，激素性高眼压，其发生率最高是3个月时．A、B两组可分别达9．18％和10．22％，但易控制。结论随术者经验的提高、手术设计的完善及术后用药的研究，这些并发症会降低。

To evaluate complications of photorefractive keratectomy for myopia. Methods PRK was performed on 382 myopic eyes of 196 patients with Laser Sight Compak - 200 PRK system. They were divided in to group A (-1. 00D^-6. 00D ),group B (- 6.25D ^-10.00D), and have been followed up for 6 months of more after PRK. Results The recovery of corneaepithelium was delayed,was 2. 36 %. At 6 months after PRK, 8 eyes (2. 72% )and 7 eyes (7. 95 % )lost 1 ~ 3lines of best corrected visual a cuity in group A and group B. The rats of overcorrection and under correc tion were 3. 05%, 4, 69% and 37. 71%, 32. 81% in group A,group B; 1 grade haze were 10. 96 %, 6. 25 % in group A,group B. 2 grade haze were 0. 61 %, 1. 56% in groupA, group B; 3 grade have only was one eye (0.34 % ) in group A; Corticosteroid - induced increase of intraocular pressure most usually ocured at 3 months after PRK, were 9. 18% and 10. 22% in group A and group B, but the steroid response was easy to be controlled. Conclusion These complications of PRK may be further diminished by in creasing experience of the surgeons, advanced surgical design, and daveloping the postoperative medicine reserch.