Induction of psoriasis following administration of beta blocker containing eye drops has rarely been documented. We report eight cases of psoriasis triggered by timolol eye drops. Since the clinical and histopathological features of this drug reaction are indistinguishable from those of idiopathic psoriasis, a thorough drug history should be taken in all patients, especially elderly ones, with recent onset of psoriasis.
Keywords: beta blocker; drug-induced psoriasis; primary open-angle glaucoma; psoriasis; scalp psoriasis; timolol.
© 2019 The Australasian College of Dermatologists.