目的：观察中高度近视患者LASIK术前对周边视网膜变性和裂孔进行预防性激光光凝的疗效。

AIM: to investigate the therapeutic effects of preventive laser photocoagulation for moderate and high myopia patients with peripheral retinal degeneration or holes before LASIK operation.

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结果：近视眼按病变性质分类，以单纯性近视占绝大多数；

Results:By the classification of the causes of myopia, the simple myopia constitutes the majority.

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结果：按病变性质分类，以单纯性近视占绝大多数（803例）；

Results: According to the property of myopia, more cases had simple myopia(803 cases);

youdao

结果：按病变性质分类，以单纯性近视占绝大多数（803例）；

Results: According to the property of myopia, more cases had simple myopia(803 cases);

youdao