准分子激光上皮瓣下角膜磨镶术治疗近视合并散光患者的疗效观察

Laser subepithelial keratomileusis for treatment of myopia and astigmatism

目的:评价准分子激光上皮瓣下角膜磨镶术(LASEK)。观察对近视合并散光角膜单薄患者的疗效。方法:对67例患者128只眼按术前屈光度分为两组,Ⅰ组28只眼,近视-2.5^-6.0 DS,散光0~2.0 DC;Ⅱ组100只眼,近视-6.25^-14.0 DS,散光0^-2.0 DC。术后随访半年以上,并将结果进行比较分析。结果:两组患者术后1周裸眼视力达0.5以上者分别为75.86%和39%;术后1个月裸眼视力达0.6以上者分别为89.29%和67%;术后6个月裸眼视力达0.8以上者分别为92.86%和56%;术后屈光度在±1.0 DS以内者分别为92.86%和56%;术后散光在±1.0 DC以内者分别为96.43%和为76%。结论:LASEK治疗近视合并散光角膜单薄的患者中,中低度以下比高度以上者更安全,临床疗效更好。

Objective：To evaluate the efficacy of laser subepithelial keratomileusis （LASEK） for the treatment of myopia and astigmatism with a thinner cornea. Methods ： Eyes （ 128 ） from 67 patients were divided into 2 groups, preoperatively, according to the refractive degree. Group Ⅰ contained 28 eyes with spherical and cylindrical refraction at - 2.5 - - 6.0 DS and 0 - 2.0 DC, respectively. Group Ⅱ contained 100 eyes with spherical and cylindrical refraction at - 6.25 - - 14.0 DS and 0 - - 2.0 DC, respectively. Following-up was lasted over half a year and the results were compared. Results： The rates of eyes that achieved vision of 0.5 or better after operation in group Ⅰ and Ⅱ were respectively 76 % and 39 % at one week, 89 % and 67 % at 1 month, 93 % and 56 % at 6 months. The rates of eyes after operation in group Ⅰ and Ⅱ were respectively 93 % and 56 % for spherical refraction within ± 1.0 DS, and 96.43% and 76% for cylindrical refraction within ± 1.0 DC. Conclusion ： LASEK was safer and more effective in treating low to moderate myopia with astigmatism than in treating high myopia with astigmatism.