A 63-year-old man comes to the office because of a 10-minute episode of right eye blindness 2 days ago. The episode resolved spontaneously and there was no associated eye pain. Medical history is remarkable for hypertension and type 2 diabetes mellitus. Medications include hydrochlorothiazide, metoprolol, glipizide, simvastatin, and 81-mg aspirin. He is 183 cm (6 ft) tall and weighs 104 kg (229 lb); BMI is 31 kg/m2. Vital signs are within normal limits. Physical examination discloses pupils that are equal in size and reactive to light. Visual fields are intact. Visual acuity is 20/20 in both eyes with corrective lenses. Cardiac examination discloses a regular rate and rhythm with no murmurs. Neurologic examination discloses no abnormalities.
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