A rare complication of topical atropine for treatment of eccrine hidrocystoma: Pharmacological fixed dilated pupils.

Multiple eccrine hidrocystoma (EH) has been treated with topical atropine with variable results. However, in rare cases, anticholinergic side effects have been seen after the use of the topical form of this drug. We presented a 50-year-old woman who developed recent onset of visual disturbance and photophobia from 2 weeks prior. The diagnosis of topical atropine-induced bilateral mydriasis was made. We reported a recognized but often overlooked case of bilateral mydriasis caused by application of topical 1% atropine for treatment of multiple EH.