Abstract
Anisocoria is a common finding in ophthalmic clinical practice. History taking and examination is critical in appropriately diagnosing and managing anisocoria, as the differential can be extensive ranging from benign to life-threatening entities. This case discusses the presentation of a 22-year-old female with a history of myopia and hyperhidrosis who presented with pharmacologic anisocoria which was presumed to be from inadvertent topical exposure to conventional glycopyrrolate tablets. To our knowledge, pharmacologic mydriasis from exposure to residue from conventional glycopyrrolate tablets has not been reported in the English literature. This case highlights the importance of medication and contact lens handling with anticholinergic agents.