摘要
目的:探讨准分子激光屈光性角膜切削术后屈光回退的主要因素。方法:采用VISX20/20型准分子激光仪对121例214眼近视患者行准分子激光角膜切削术,术后随访2年。分二组进行比较,Ⅰ组为低中度近视(-1.00D～-6.00D)124眼,Ⅱ组为高度近视(-6.25D～-16.00D)90眼。结果:术后2年低中度近视回退率9.7％,高度近视回退率27.8％(P<0.005),高度近视中高龄组较低龄组回退率高(P<0.005),较严重的角膜上皮下雾状混浊与回退伴行。结论:准分子激光角膜切削术后屈光回退的主要因素有预期矫正屈光度,角膜Haze及年龄。眼科学报2000;16:276～278。
Purpoes: To investigate myopic regression after excimer laser photorefractive keratecto-my(PRK) in patients with myopia.
Methods: PRK was performed to correct myopia errors from 1. 00 D to 16. 00 D diopters on 214 myopia eyes(121 patients) . All eyes were divided into two groups: group I -l.00D- - 6. 00 D (124 eyes), groupⅡ- 6. 25 D ~ - 16. 00 D(90 eyse). All the patients were followed up for two years.
Results: A Significant positive correlation was found between the regression and the extents of attempted correction. The rate of regression in mild to moderate myopia group was 9. 7% while in highter group it was 27. 8% ( P < 0. 005). The rate of regression of older age group in lighter myopia group was highter than that in younger case ( P < 0. 005). Relatively severe haze under the corneal epithelium often accompanies the regression.
Conclusion: The main factors which caused the myopia regression affer PRK was the extent of attempted correction, patiens' age and corneal haze. Eye Science 2000; 16: 276-278.
出处
《眼科学报》
2000年第4期276-278,共3页
Eye Science
