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角膜浅层混浊传统的治疗办法为角膜移植，但增视效果差，还存在着排斥的风险。随着准分子激光技术的发展〔１〕，激光治疗性角膜切削术（Ｐｈｏｔｏｔｈｅｒａ－ｐｅｕｔｉｃＫｅｒａｔｅｃｔｏｍｙ，ＰＴＫ）已越来越多地被用来治疗角膜浅层组织病变，来推迟或避免更具损...
The traditional treatment of shallow corneal opacities corneal transplantation, but poor visual enhancement, there is still the risk of rejection. With the development of excimer laser technology [1], photothera-peutic keratectomy (PTK) has been increasingly used to treat shallow corneal tissue lesions to delay or avoid more damage. .