AIM: To observe and analyze the effect of laser treatment on peripheral retinal degenerative change in moderate and high myopia.
目的：对中、高度近视视网膜周边部退行性改变激光治疗的效果及时机进行临床观察分析。
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.
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。
The changes of posterior corneal power and posterior surface elevation in high myopia were significantly more than those of mild-moderate myopia after LASIK ( P< 0. 05 ).
高度近视组角膜后表面屈光力与角膜后表面隆起度改变量大于中低度近视组的改变量（P<0.05）。
The changes of posterior corneal power and posterior surface elevation in high myopia were significantly more than those of mild-moderate myopia after LASIK ( P< 0. 05 ).
高度近视组角膜后表面屈光力与角膜后表面隆起度改变量大于中低度近视组的改变量（P<0.05）。
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