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Iris microhemangiomatosis is an unusual, benign vascular abnormality that can cause spontaneous and recurrent hyphema with transient vision loss. Active bleeding is rarely documented and usually presumed, based retrospectively on nontraumatic layered hyphema. We report a case of iris microhemangiomatosis with videographically documented active bleeding.
A 62-year-old man was referred for nontraumatic hyphema in the right eye. He noted sudden blurred vision over 1 day while painting his house. There were no previous episodes in either eye. There was a history of controlled hypertension, cerebral aneurysms managed surgically, and aspirin use. There was no history of bleeding disorders.
Ni N, Johnson TV, Koval MS, Shields CL. Iris Microhemangiomatosis With Videographically Documented Active Bleeding and Vision Loss. JAMA Ophthalmol. 2013;131(12):1649-1651. doi:10.1001/jamaophthalmol.2013.6211