Corneae角膜cornean.角膜corneal endothelium cell角膜内皮细胞corneal limbal stem cell角膜缘干细胞corneal fascicular ulcer束状角膜溃疡corneal section scissors角膜切开剪Corneal neovasculazation角膜新生血管corneal limbus stem cell角膜缘干细胞corneal epithelial cells角膜上皮细胞corneal limbal autograft自体角膜缘移植corneal endothelial ceil角膜内皮细胞Corneal refractive power角膜屈光力