Nonarteritic Anterior Ischemic Optic Neuropathy

To investigate systematically the natural history of visual outcome in nonarteritic anterior ischemic optic neuropathy (NAION).Cohort study.Three hundred forty consecutive untreated patients (386 eyes) with NAION, first seen in our clinic from 1973 to 2000.At first visit, all patients gave a detailed ophthalmic and medical history and underwent a comprehensive ophthalmic evaluation. Visual evaluation was done by recording visual acuity, using...