角膜塑形术治疗青少年近视疗效探讨

目的：评价角膜塑形术（Ｏｒｔｈｏｋｅｒａｔｏｌｏｇｙ）治疗青少年近视的效果。方法：应用角膜塑形术治疗５６例青少年近视患者共１１０眼。分为３组：Ⅰ组为－１．００～－３．００Ｄ，Ⅱ组为－－３．２５～－６．００Ｄ，Ⅲ组为－６．２５～－７．５０Ｄ，随访３个月。将各个时期的裸眼视力、屈光度、角膜屈光力与术前进行比较。同时，对治疗３个月后的角膜屈光力变化值（Ｘ）值与临床屈光度变化值（Ｙ）进行直线回归及直线相关

Result of Orthokeratology for Treatment of Young People with Myopia

Purpose: To evaluate the effectiveness of orthokeratology (Ortho-K) for treatment of myopia in youngths.Methods: 110 eyes of 56 young peoples with myopia received Ortho-K were studied. The patients were divided into 3 groups according to preoperative diopters. No. I:-1. 00-- 3. 00 D, No. II: - 3. 25 --6. 00 D, NO. III: - 6. 25 - - 7. 50 D. The uncorrected visual acuities, residual diopters and corneal refractive powers at various time of three months after the operation were statistically analyzed and compared with that of preoperation. Correlation analysis and linear regression analysis were performed between the corneal refractive reduction (X) and clinical refractive reduction (Y) after 3 months of the operation.Results: In 110 eyes, the uncorrected visual acuities in the first day, first week, first month, second month and third month after operation were significantly improved than that of the preoperation (P < 0.01). The mean residual diopters were significantly reduced than that of preoperation ( P < 0. 01). The mean refractive powers of cornea were significantly decreased than that of the preoperation ( P < 0. 01). There was significant correlation between the corneal refractive reduction and clinical refractive reduction. ( r = 0.318 1, P < 0.001) Conclusion: Orthokeratology is a safe and effective therapeutic method for treatment of149 myopia in youngths. The long term effect of Orthokeratology need further observation. Eye Science 2000; 16: 149 - 152.