用散光的方法來提取光源在Z軸上的位置。Using astigmatic method to extract information of light source in z axis.:PRK治療較高度數(shù)散光的療效確切, 預(yù)測(cè)性強(qiáng).For moderate and higher astigmatism, PRK provides better accuracy and predication.對(duì)遠(yuǎn)視兼散光的人手術(shù)后結(jié)果的預(yù)期較少.Peo...