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Comparison of visual field defects during the disorders. Ninety percent of MS patients showed central scotoma every time, but 54% in NMO (p = 0.022). In NMO patients, 33% of patients showed both central scotoma and non-central scotoma, and 13% of patients showed non-central scotoma every time. MS = multiple sclerosis; NMO = neuromyelitis optica.
