Evolution of a Retinal Hemorrhage

We present a 57‑year‑old man with no past medical history who experienced the sudden onset of an inferonasal visual field deficit in the right eye shortly after a long‑distance run. One week prior, he had ascended to approximately 10,000 feet while traveling in Hawaii, and on the descent noted a headache that lasted several hours. On the day of visual loss, the patient was a neurologist and he self‑administered low molecular weight heparin (1 mg/kg) IM and aspirin 162 mg orally. He was examined in the eye clinic the following day. He had no prior vasculopathic, cardiac, or rheumatologic conditions, and no systemic symptoms.