准分子激光角膜切削术(Photorefractive Keratec-tomy,PRK)治疗近视是一种安全而有效的方法,近年来有诸多成功报道。但是,多年的观察发现,该手术后仍存在一些难以克服的问题,其中最主要的是角膜雾状浑浊(Haze),影响手术疗效,探求其发病机制及治疗措施,正成为眼科界关注的焦点。近年来, Photorefractive Keratec-tomy (PRK) is a safe and effective method for the treatment of myopia, and many successful reports have been made in recent years. However, many years of observation have found that there are still some difficult problems to be solved after the operation. The most important one is the haze of the cornea, which affects the curative effect of the surgery and explores its pathogenesis and treatment measures. It is becoming the focus of ophthalmology . In recent years,