Objective:To evaluate the predictability, stability and safety of excimer laser photorefractive keratectomy (PRK) for correcting the residual myopia and astigmatism after keratotomy (RK).
目的： 评价准分子激光屈光性角膜切削术治疗放射状角膜切开术后残余近视散光的预测性、稳定性和安全性。
2
The laser surgery for vision correction that replaced radial keratotomy (e. g., lasik and other procedures) is not associated with visual disturbances at high altitudes.
取代前项技术，用以矫正视力的雷射手术与高海拔的视觉障碍并无直接关系。
3
This paper describes an excimer laser and its beam delivery system for corneal radial keratotomy.