Methods Four kinds of KLAL methods including pan graft, annular graft, subtotal graft and mushroom graft were performed on 42 eyes of 38 patients with limbal stem cell deficiency.

• 方法根据角膜缘受损程度，用全角膜上皮移植、指环形上皮移植、次全角膜上皮移植和蕈状瓣移植4种不同术式治疗38例（42眼）角膜缘干细胞功能衰竭；