准分子激光于80年代初期方开始在眼科应用。由于其准确性高而热效应小,因此在角膜屈光手术方面有广阔的前景。该激光切割角膜的机制主要是光化学切割,因而很少伤及切口周围组织,但该激光有潜在的诱变DNA的作用。目前,该激光已通过大量的动物试验和志愿者盲眼的追踪观察,并试用于临床取得良好效果。 Excimer laser in the early 80s began in ophthalmic applications. Due to its high accuracy and low thermal effects, there is a great prospect for corneal refractive surgery. The laser cuts the cornea primarily through photochemical cleavage, thus seldom injuring the tissue surrounding the incision, but the laser has the potential to mutagenize DNA. At present, the laser has been through a large number of animal experiments and blind observation of volunteers to observe and try to get good clinical results.