准分子激光原位角膜磨镶术远期疗效观察

目的　探讨准分子激光原位角膜磨镶术 (laserinsitukeratomileusis,LASIK)治疗近视的远期疗效。方法　按近视屈光度数 - 1 5 0～ - 6 0 0D、- 6 12～ - 12 0 0D和 - 12 12～ - 2 5 0 0D将716例 (12 85只眼 )近视患者分为A、B和C 3个组行LASIK ,术后平均随访时间 2 6 7个月 ,对资料进行总结和分析。结果　术后 2年 ,屈光度数 <± 1 0 0D者A组为 93 4 % ,B组为 86 7% ,C组为 6 5 5 % ;屈光度数 <± 0 5 0D者A组为 84 4 % ,B组为 79 7% ,C组为 4 2 1%。裸眼视力≥ 0 5者A组为99 6 % ,B组为 93 8% ,C组为 6 2 6 % ;裸眼视力≥ 1 0者A组为 90 4 % ,B组为 6 8 6 % ,C组为 2 7 2 %。39只眼因屈光度数回退或欠矫 ,2只眼因角膜上皮植入再次行LASIK。结论　LASIK可有效治疗轻度至超高度近视 ,手术安全、预测性好 ,远期随访 2年疗效稳定。

A long-term observation of laser in situ keratomileusis for myopia

OBJECTIVE: To evaluate the long-term results of laser in situ keratomileusis (LASIK) for the correction of myopia. METHODS: A total of 1 285 eyes with preoperative refraction of -1.50 - -25.00 diopters were treated with LASIK. Based on the preoperative refraction, the patients were divided into 3 groups (-1.50 - -6.00 D, -6.12 - -12.00 D, -12.12 - -25.00 D). The mean follow-up was 26.7 months and the results were concluded and analyzed. RESULTS: At two years, respectively 93.4%, 86.7% and 65.5% in the above three groups were within +/- 1.00 D, 84.4%, 79.7%, 42.1% were within +/- 0.50 D; the uncorrected visual acuity was >/= 0.5 in 99.6%, 93.8% and 62.6% of the patients, and 90.4%, 68.6%, and 27.2% had vision of >/= 1.0. Thirty-nine eyes with regression or under correction, and 2 eyes with epithelial ingrowth had been retreated with LASIK. CONCLUSIONS: LASIK is effective and safe for the correction of mild, moderate, high and super-high myopia. The results of follow-up for two years are stable.