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contentuptodate· Content· item f27_3_27696

©2013 UpToDate ® Print Email Asymptomatic eye in a patient with nonarteritic anterior ischemic optic neuropathy The fellow eye in a person with nonarteritic anterior ischemic optic neuropathy (NAION). Note the small cup. Courtesy of Madhura Tamhankar, MD and Nicholas J Volpe, MD.