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Perioperative visual loss has been associated with many types of non-ocular surgery.1 Risk factors include combinations of prolonged surgical times, hypotension, anaemia due to blood loss, or prone positioning.2 We are not aware of another report of perioperative visual loss in which the only risk factor was hypotension.
A 55 year old man had left rotator cuff surgery. He was supine, surgical time was 3 hours, and blood loss was minimal. Postoperatively he experienced “kaleidoscopic” vision in the inferior visual field of his left eye which cleared. Four weeks later he had right …