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August 1970

Episodic Unilateral Mydriasis in Otherwise Normal Patients

Author Affiliations

From the Howe Laboratory of Ophthalmology, Harvard University Medical School, and Massachusetts Eye and Ear Infirmary, Boston. Dr. Hallett is now with the Laboratory of Neurobiology, National Institute of Mental Health, Bethesda, Md.

Arch Ophthalmol. 1970;84(2):130-136. doi:10.1001/archopht.1970.00990040132002

Eight patients, who are otherwise normal, presented with a clinical syndrome of episodic unilateral mydriasis. Episodes are of various lengths in different patients and occur at random intervals. Head pain and blurring of vision are typical. There is no ocular muscle palsy or lid involvement. Prognosis appears good. There are various syndromes which include the feature of episodic unilateral mydriasis.