在近年来的招飞体检中 ,我们发现接受屈光性角膜手术后的受检者逐渐增多。随着手术技术和手术设备的不断完善 ,屈光性角膜手术完成得更加完美 ,以致于用一些常规检查手段不能甄别。屈光性角膜手术用激光对角膜中央进行圆形切削 ,使角膜曲率半径增加 ,屈光力减弱 ,物像焦点后移 In recent years, the flying examination, we found that patients receiving refractive corneal surgery gradually increased. With the continuous improvement of surgical techniques and surgical equipment, refractive corneal surgery has been completed more perfect, so that some conventional screening methods can not be identified. Refractive corneal surgery laser corneal central circular cutting, so that the corneal curvature radius increases, refractive power decreased, the image focus after the shift