Main Entry: scintillating scotoma Function: noun : a blind spot in the visual field that is bordered by shimmering or flashing light and that is often a premonitorysymptom of migraine attack
scintillating scotoma scin·til·lat·ing scotoma (sĭn'tl-ā'tĭng) n. A localized area of blindness that may follow the appearance of brilliantly colored shimmering lights and is associated with the aura of migraine.
