A previously healthy Hispanic man in his 40s was transferred to the University of Illinois at Chicago emergency department with a 3-week history of intermittent facial tingling, pulsatile tinnitus, acute-onset worsening blurry vision, altered color perception, and paracentral scotomas in both eyes. His review of systems was otherwise negative for unusual findings, and he denied any pain, photophobia, or eye redness. His medical and ocular history included only pterygium surgery many years ago. His social history was significant for multiple male and female sexual partners.