A 66-year-old man was seen in the glaucoma clinic at Tufts Medical Center due to visual field changes, referred to neurology and then to neuro-ophthalmology with gradual left-sided peripheral visual field haziness over the past year.
He had no history of head or ocular trauma, no central visual changes, and no numbness, dizziness, tingling, slurring of speech, weakness or other neurologic signs. He said his memory had always been sharp; however, over the past several months, he had been more forgetful. MRI of the brain was obtained by neurology and was negative for an acute underlying