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Figure 1 Evolution of visual function after acute optic neuritis Figure shows the measurement of high-contrast visual acuity (VA) using the Early Treatment Diabetic Retinopathy Study (ETDRS) charts (A), the 2.5% and 1.25% low-contrast VA using Sloan charts (B, C), and color vision using the Hardy-Rand-Rittler (HRR) pseudoisochromatic plates (D) in a cohort of 37 patients with acute optic neuritis (AON) and visual assessment at baseline (presentation) and months 2, 4, and 6 after onset (data from Gabilondo, I et al ). Evolution of visual function after acute optic neuritis Figure shows the measurement of high-contrast visual acuity (VA) using the Early Treatment Diabetic Retinopathy Study (ETDRS) charts (A), the 2.5% and 1.25% low-contrast VA using Sloan charts (B, C), and color vision using the Hardy-Rand-Rittler (HRR) pseudoisochromatic plates (D) in a cohort of 37 patients with acute optic neuritis (AON) and visual assessment at baseline (presentation) and months 2, 4, and 6 after onset (data from Gabilondo, I et al ). Each colored line is data from an individual patient, the solid black line represents the mean from all patients, and the dashed black line shows the normal values for healthy individuals for binocular testing (ETDRS = 70; 2.5% low-contrast VA = 43; 1.25% low-contrast VA = 34; HRR = 36). Reprinted with permission from Elena H. Martinez-Lapiscina. Steven L. Galetta et al. Neurol Neuroimmunol Neuroinflamm 2015;2:e135 © 2015 American Academy of Neurology
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