What is the association between migraine or scintillating scotoma and sudden visual loss?

Updated: Dec 11, 2019
  • Author: Jean Deschênes, MD, FRCSC; Chief Editor: Edsel Ing, MD, MPH, FRCSC  more...
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Answer

Idiopathic

Migraine or scintillating scotoma: This may occur on a persistent basis or may recur after an absence of decades. The physiologic and anatomic bases have not been explained fully but are thought to involve retinal vasospasm. [31, 2] Shimmering scotomas with or without perception of color or movement are reported commonly, usually as a binocular symptom but occasionally monocular. Most commonly, these last less than 30 minutes.


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