准分子激光屈光性角膜切削术治疗近视的远期疗效  

The Long-term Results of Excimer Laser Photorefractive Keratectomy for Myopia

作　　者：富质洁[1] 孙慧兰[1] 赵希智[1] 裴晓梅[1] 

机构地区：[1]福建省立医院眼科,福州市350001

出　　处：《中国激光医学杂志》2001年第4期210-213,共4页Chinese Journal of Laser Medicine & Surgery

摘　　要：目的　评价准分子激光屈光性角膜切削术 (PRK)治疗近视的远期疗效。方法　 178例 34 4眼屈光度为 - 1 0 0～ - 19 0 0D患者分为 :Ⅰ组 - 1 0 0～ - 6 0 0D ,16 5眼 ,Ⅱ组 - 6 2 5～ - 10 0 0D ,12 9眼 ,Ⅲ组≥ - 10 2 5D ,5 0眼。PRK术后对患者的视力、屈光度、角膜上皮下基质混浊等进行 3年随访。结果　 3年时裸眼视力达到术前最佳矫正视力者Ⅰ组为 90 9% (15 0眼 ) ,Ⅱ组为 72 9% (94眼 ) ,Ⅲ组为 40 0 % (2 0眼 ) ;屈光度在预期矫正度± 1 0 0D以内者 ,Ⅰ组为 95 8% (15 8眼 ) ,Ⅱ组 76 0 % (98眼 ) ,Ⅲ组为 2 8 0 % (14眼 ) ;角膜上皮下基质混浊 ,0～0 5级的Ⅰ组、Ⅱ组均为 10 0 % ,Ⅲ组为 90 0 % (4 5眼 )。结论　PRK治疗近视 ,低中度近视的远期效果满意 ,对 - 6 2 5～ - 10 0 0D的高度近视有效 ,但不如低中度近视的效果好 ,而对于≥ - 10 2Objective To evaluate the long term effectiveness and safety of photorefractive keratectomy (PRK) for patients with myopia. Methods 344 myopic eyes of 178 patients were divided into three groups: Ⅰ -1 00 to -6 00D,165 eyes; Ⅱ -6 25 to -10 00D, 129 eyes; Ⅲ ≥-10 25D,50 eyes. The follow up of more than 3 years after PRK were conducted. Results Three years after operation the rates of uncorrected visual acuity equal or better than the best preoperative corrected visual acuity were 90 9% (150 eyes) in group Ⅰ, 72 9% (94 eyes) in groupⅡ, and 40 0% (20 eyes) in group Ⅲ, respectively. Percentages of ±1 00D were 95 8% (158 eyes) in group Ⅰ, 76 0% (98 eyes) in group Ⅱ and 28 0% (14 eyes) in group Ⅲ. The rates of corneal haze within the range of 0-0 5 grade were 100% in group ⅠandⅡ, 90 0% (45 eyes) in group Ⅲ. Conclusions The PRK is a safe and effective way of treatment for those with low or moderate myopia. Though not ideal, it is satisfactory for high myopia patients with the range of -6 25 to -10 00D. For those whose myopia are more than -10 25D, it is unsatisfactory.

关 键 词：屈光性角膜切削术 近视 远期疗效 准分子激光 

分 类 号：R779.63[医药卫生—眼科]