Waring G O
Trans Ophthalmol Soc U K (1962). 1985;104 ( Pt 1):28-42.
The basic principles of radial keratotomy for myopia were described in 1898: radial incisions flatten the cornea in the direction of the incision, deep incisions were more effective, and some of the result diminished as the cornea healed. Since then the surgical procedure has undergone evolution and refinement, with changes now occurring rapidly. The acronym STEPS provides a useful guide in evaluating the operation: safety, technique of surgery, efficacy, predictability, stability, and each of these subjects will be discussed.
1898年描述了近视放射状角膜切开术的基本原则：放射状切口可使角膜在切口方向变平，切口越深效果越明显，且随着角膜愈合部分效果会减弱。从那时起，该手术方法不断发展和完善，如今变化迅速。首字母缩写词STEPS在评估该手术时提供了有用的指导：安全性、手术技术、有效性、可预测性、稳定性，以下将对这些方面逐一进行讨论。
