“…5 A study reported UP as the first manifestation of MS in an adult male who presented with blurred vision after performing intense exercise in the fitness room. 6 Another study reported three episodes of oscillopsia that occurred while a 17-year-old man participated in intense sports in summer (which was interpreted as recurrent UP); the man was finally diagnosed with radiologically isolated syndrome. 7 To date, no studies have reported UP as the initial symptom in individuals with NMOSDs.…”