准分子激光屈光性角膜切削术治疗近视的临床分析  

Clinical analysis of Excimer Laser Photorefractive Keratectomy for Myopia.

作　　者：朱启仲[1] 郑历[1] 孙怡[1] 叶明霞[1] 

机构地区：[1]浙江省人民医院眼科,310014

出　　处：《伤残医学杂志》1999年第2期8-11,共4页Medical Journal of Trauma and Disability

摘　　要：目的:评价准分子激光屈光性角膜切削术(PRK)治疗不同程度近视的疗效。方法:应用Schwind Keratom F准分子激光机对1995眼不同程度近视(-0.75～-20.00D)行PRK治疗。按屈光度分三组:组Ⅰ≤-6.00D,873眼:组Ⅱ-6.25D～-10.00D,774眼;组Ⅲ>-10.00D,348眼。术后随访12个月,进行比较分析。结果:术后12个月Ⅰ、Ⅱ、Ⅲ组裸眼视力≥0.5者分别为98.6％,94.2％和60.4％;≥1.0者分别为85.5％,71.3％和25.9％;屈光度在±1.000以内分别为90.5％,68.8％和29.3％。角膜雾状混浊(Haze)≥2级者分别为0.8％,11.5％和13.7％。结论:PRK治疗近视对中低度疗效较好,对高度和超高度近视由于术后Haze和屈光度回退发生率增高,疗效受到明显影响,有待进—步完善手术方法和术后用药等问题。Objective: To value the efficacy of Photorefractive keratectomy for myopia with different diopters. Methods: Schwind Keratom F excimer was used. According to the preoperative myopia (-0.75-20.00D), 1995 eyes were divided into group I (≥-6.00D, 873 eyes), II(-6.25D-10.00D, 774 eyes) and III(>10.00D, 348 eyes). All the cases were followed up for one year. Results: The uncorrected visual acuity ≥0.5 was 98.6%, 94.2% and 60.4%; ≥1.0 was 85.5%, 71.3% and 25.9%; refraction with in ≥1.0D were 90.5%, 68.8% and 293%; corneal haze of 2, 3 grades was 0.8%, 11.5% and 13.7% in group I, II and IIIrespectively. Conclusion: The correction of slight and mild myopia with PRK is proved to be promising. However, the results are not so satisfactory in cases of high and super-high myopia for the higher rate of haze and regression. The operative methods and postoperative use of drugs must further studied.

关 键 词：准分子激光 屈光性角膜切削术 近视 外科手术 

分 类 号：R778.11[医药卫生—眼科]