“…Systemic corticosteroid therapy A recent large, prospective study [33], based on 696 eyes, comparing the visual outcome in treated (364 eyes) versus untreated control (332 eyes) groups, with identical baseline parameters in the two groups, concluded that NA-AION eyes treated during the acute phase with systemic corticosteroids had a significantly higher probability of improvement in visual acuity and visual field than did the untreated group. In eyes with initial visual acuity of 20/70 or worse, seen within 2 weeks of onset, there was visual acuity improvement in 70% in the treated group compared to 41% in the untreated group (odds ratio of improvement: 3.39; 95% CI:1.62, 7.11; p=0.001).…”