Topical retinoic acid treatment of drug-induced pseudopemphigoid.

A case of drug-induced ocular cicatricial pemphigoid with pronounced keratinizing squamous epithelium metaplasia was treated for 5 months with all-trans retinoic acid ointment. Keratinization reversed completely and the cicatricial process was stabilized in one eye and slowed down in the other eye. The treatment was well tolerated.