Purpose To compare the refractive and keratometric results of matched pairs of patients who underwent radial keratotomy (RK) at sea level and high altitude. Methods The results of 30 eyes that ...

因不堪忍受厚重镜片带来的种种困扰，30多年前他就选择了做了当时最风靡的近视矫正手术——放射状角膜切开术(radial keratotomy,RK)。 手术后 ...