- A 64-year-old Caucasian man presented with a 1-day history of acute painless vision loss in the right eye. On examination, his visual acuity was hand motions OD and 20/30 OS. His intraocular pressures were normal OU and he had a 3+ relative afferent pupillary defect OD. The anterior segment examination was unremarkable OU. Fundoscopic examination of the right eye revealed a cherry red spot (Fig. 1A). No vitreous cell, vasculitis, or chorioretinitis was noted OU. A fluorescein angiogram of the right eye showed an arterial filing line (Fig.
- A 29-year-old, otherwise healthy woman presented to the emergency eye clinic with a 1-day history of right eye conjunctivitis, photophobia, and clear watery discharge from the right eye. She returned from a 1-month vacation in the Philippines 3 days before presentation; she spent 1 day in San Francisco en route to her return to Canada. During her time in the Philippines, she swam in the ocean and hotel swimming pools. She was feeling well on her date of return on February 29 (Fig. 1). In Canada, she visited a public swimming pool the day after return.