Fig. 7 Conjuctival limbal autograft (CLAU) complication. In this patient with Stevens-Johnson syndrome, limbal stem cell deficiency (LSCD) was thought to be limited to the right eye. Despite CLAU from the left eye, his right eye did not recover useful vision (A). Importantly, the donor left eye showed pseudopterygium (B) with irregular epithelium and reduced vision (C). Fluorescein staining showed late staining decorating an area greater than the pseudopterygium (D). Impression cytology confirmed the migration of conjunctival epithelium with goblet cells on the corneal surface (insets of C and D), indicating the development of LSCD.