角膜地形图引导的近视准分子激光原位角膜磨镶术

目的 观察及评价角膜地形图引导的近视准分子激光原位角膜磨镶术（LASIK）。方法 对48例近视患者的95眼实施角膜地形图及ORK—CAM软件引导的LASIK手术。按术前屈光度分为低度、中度、高度三组，分别与术前自身眼高阶像差、最佳矫正视力比较。结果 术后1个月时与术前相比：彗差在低度组降低9．8％，差异无显著性；中、高度组分别增长68．6％及136．5％，差异有显著性；球差在低、中、高三组分别增长21．1％，119．4％及126．5％，差异有显著性；均方根在低、中、高三组分别降低2．0％、61．8％及60．9％，在中、高度组差异有显著性（P〈0．01）；角膜最适不规则指数在低、中、高三组分别增长4．8％及47．5％，66．9％，仅高度组差异有显著性（P〈0．05）。总体彗差增长70．6％；球差增长115．1％；均方根下降59．8％；角膜最适不规则指数增长45．2％。好于及达到术前最佳矫正视力占总例数的66．3％，略差的占31．6％，差1行的占2．1％。结论 角膜地形图＋ORK—CAM软件引导的LASIK手术后均方根值总体下降，对根高视常后量右希．

The corneal topography guided myopia LASIK

Objective To observe and evaluate corneal topography guided laser-assisted in situ keratomileusis(LASIK).Methods 95 eyes of 48 myopia patients underwent corneal topography and ORK-CAM software guided LASIK were studied.Results In mid and high diopter levels,Coma respectively increased 68.6% and 136.5%.As for SpAb,there was significant differences between mid and high diopter ones.There was significant differences between the mid and high diopter level groups for RMS.Conclusion After the corneal topography CAM-ORK software guided LASIK,the RMS of the population decreased.The surgery has been with great positive effect on the visual quality.