Objective To analyze types and factors of epithelial-flap abnormality of laser subepithelial keratomileusis (LASEK), and to study preventions and treatments.

• 摘要目的分析准分子激光上皮瓣下角膜磨镶术(LASEK)的角膜上皮瓣异常的类型、产生原因、预防及处理方法。