An 80-year-old man was referred for gradual worsening vision loss in his right eye.
Specifically, he noted having to actively look downward to avoid tripping due to loss of inferior peripheral vision. These symptoms developed gradually over the past 1 to 2 months. He also reported seeing intermittent flashes and a transient blue discoloration whenever transitioning from a dark to light environment.
He denied headaches, scalp tenderness, jaw claudication, weight loss or pain with eye movement. His diet was well balanced, and he had not undergone recent surgeries.
Approximately 25 years prior, the