[准分子激光屈光性角膜切削术治疗近视及近视散光的三年随访结果分析]

[Analysis on three-year follow-up results of excimer laser photorefractive keratectomy in treatment for myopia and myopic astigmatism].

作者信息

Liu S Z, Wu X Y, Wang P B

机构信息

Ophthalmic Laser Center, Xiangya Hospital, Central South University, Changsha 410008, China.

出版信息

Hunan Yi Ke Da Xue Xue Bao. 2001 Dec 28;26(6):553-5.

PMID:12536539

Abstract

OBJECTIVE

To evaluate the efficacy of excimer laser photorefractive keratectomy(PRK) on myopia and myopia astigmatism.

METHODS

PRK was performed with VISXC20/20 on 377 eyes of 209 patients. Treated eyes were divided into two groups, according to their conditions before operation: Group I included 238 eyes (-1.50 to -6.00 D); Group II, 139 eyes (-6.25 to -16.00 D). All patients were followed-up for more than three years.

RESULTS

Percentages of uncorrected visual acuity (UCVA) > or = 10/20 and 20/20 were 99.6% and 85.3% in Group I, and 79.9% and 48.2% in Group II respectively. Percentage of diopter < +/- 1.00 in Group I was 94.5%, and 61.9% in Group II. The rate of corneal haze of grade 0 was 100% in Group I, and 98.6% in Group II, but corneal haze of grade 2 was found in 1.2% of eyes in Group II. The postoperative intraocular pressure (IOP) of all operated eyes was normal.

CONCLUSION

The results suggest that excimer laser PRK is an effective method for treating myopia and myopic astigmatism, especially for low and moderate myopia.

摘要

目的

评估准分子激光屈光性角膜切削术（PRK）治疗近视及近视散光的疗效。

方法

使用VISXC20/20对209例患者的377只眼进行PRK手术。根据术前情况将患眼分为两组：I组238只眼（-1.50至-6.00 D）；II组139只眼（-6.25至-16.00 D）。所有患者均随访三年以上。

结果

I组未矫正视力（UCVA）≥10/20和≥20/20的百分比分别为99.6%和85.3%，II组分别为79.9%和48.2%。I组屈光度<±1.00的百分比为94.5%，II组为61.9%。I组0级角膜混浊率为100%，II组为98.6%，但II组有1.2%的患眼角膜混浊达2级。所有手术眼术后眼压均正常。