Five patients presenting with signs and symptoms of primary optic nerve disease were, after careful examination, diagnosed as having the multiple evanescent white-dot syndrome. Optic nerve findings in these patients included disc edema, central visual loss, enlarged blind spots, and other optic nerve field defects. The subtlety of the white spots in some cases made the diagnosis difficult. Multiple evanescent white-dot syndrome should be considered in the differential diagnosis of young, healthy patients who present with unilateral or bilateral optic nerve dysfunction.
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