目的：探讨板层角膜移植治疗角膜病变的疗效。方法：对11例（12只眼）角膜疾患行治疗性角膜板层移植术，结果：12只眼病灶全部切除，术后植片成活......

Nasal dermoids are congenital midline masses accounting for 1% - 3% of all dermoids. The majority of lesions are superfi......