Fig. 5From: MOG-IgG in NMO and related disorders: a multicenter study of 50 patients. Part 2: Epidemiology, clinical presentation, radiological and laboratory features, treatment responses, and long-term outcomeHigh-contrast visual acuity (VA) loss during acute ON (N = 39 patients). Blind: complete or functional blindness (VA ≤0.1) in one or both eyes at least once; severe: VA ≤0.5; moderate: VA ≤0.75; mild: ≤1.0; none: high-contrast VA not affected, but low-contrast visual loss, color desaturation, and/or scotoma presentBack to article page