放射状角膜切开术((Radial Keratotomy,R、K)是矫正近视和散光的一种新术式。在遗留视区角膜上进行放射状深切开,可使角膜变扁平,从而政变眼的屈光状态。许多作者已证明放射状角膜切开术是有效的和安全的。早在19世纪就已证实手术可改变角膜的曲率。放射状角膜切开术发明在日 Radial Keratotomy (Radial Keratotomy, R, K) is a new technique for correcting myopia and astigmatism. Radial deep incision on the left cornea of ​​the left visual field causes the cornea to become flattened, Many authors have demonstrated that radial keratotomy is effective and safe, and surgery has been shown to alter the curvature of the cornea as early as the 19th century. Radial keratotomy was invented in Japan