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Cluster Headache | Kathleen B. Digre, MD, Professor of Neurology and Ophthalmology, Director of Neuro-Ophthalmology, John A. Moran Eye Center, University of Utah School of Medicine | Cluster headache is a specific headache syndrome usually occurring in men. It is characterized by a unilateral headache, lasting 15-60 minutes, associated frequently with ipsilateral lacrimation, rhinorrhea and ptosis. It was first described by Romberg in 1840 but not fully recognized as a specific ... | 19870204_nanos_headachesympos_02 |