Methods An excimer laser machine ( NIDEK , type EC-5000 , made in Japan ) was used to do PRK for treatment of myopia ( 115 cases , 208 eyes ) .
方法应用日本生产的NidekEC-5000型准分子激光机，对不同程度的近视眼（共115例208只眼）进行治疗。
nidek