title: Optic neuritis or multiple sclerosis.
mesh_terms: D000328:Adult; D001315:Australia; D005060:Europe; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000453:epidemiology* / Q000209:etiology; D009902:Optic Neuritis / Q000150:complications / Q000453:epidemiology*; D006113:United Kingdom; D014481:United States