Superior Ophthalmic Vein in Carotid Cavernous Fistula
AM is a 52-year-old man who was knocked to the ground by falling canisters and bumped the back of his head on the cement floor. He did not recall losing consciousness and was cleared by the emergency room to return to work the next day. He was asymptomatic for a few months but then began to experience severe headaches. He was diagnosed with migraines and treated with beta blockers with partial relief. In the following year he began to see double and was seen by an ophthalmologist, who prescribed prisms in his glasses that allowed him to see without diplopia in primary gaze. During this time he also noted that his right eye was red much of the time. He did not appreciate any unusual noises in his head.