鲁医广证字(1999)第7194号近视眼的屈光状态是远处物体所发出的平行光线聚焦于视网膜前方而不是在视网膜上。应用准分子激光改变角膜的弯曲度,使其较为扁平,即可将平行光线的焦点后移至视网膜上,从而成为正视眼。准分子激光是一种远紫外冷激光,每一脉冲可精确地切削掉0.25μm的 Lu Yi Guangguangzi (1999) No. 7194 myopia refractive state is distant objects issued by the parallel light focused on the front of the retina rather than the retina. The application of excimer laser to change the curvature of the cornea, making it more flat, you can focus the parallel light back to the retina, which became the eye. Excimer laser is a far UV cold laser, each pulse can be accurately cut 0.25μm