准分子激光原位角膜磨镶术后角膜地形图的临床观察

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目的分析准分子激光原位角膜磨镶术后角膜地形图的动态变化特点.方法对143例(206眼)近视患者手术后1,3,6个月进行角膜地形图随访.结果Simk的差值较术前降低,术后6个月切削形态呈平滑型87.3%,切削形态随术后时间延长而逐渐变规则.术后偏心切削占34.9%,偏心切削在1 mm以内对最佳矫正视力影响不大.结论角膜地形图的检查可准确显示LASIK术后角膜的形态变化,对手术设计的改进和手术疗效的预测具有重要的临床意义.
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