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Can anyone contribute any facts about actual brain or CNS mechanism for "scintillating scotoma"?

3 doctors weighed in
Dr. Bennett Werner
Internal Medicine - Cardiology
2 doctors agree

In brief: Arterial spasm

It is due to spasm of the arteries/arterioles that are supplying blood to the visual cortex.
It is temporary and occurs as a prodrome prior to onset of a migraine headache in susceptible individuals. After the spasm has subsided, the arteries dilate which is associated with onset of typical pounding headache pain.

In brief: Arterial spasm

It is due to spasm of the arteries/arterioles that are supplying blood to the visual cortex.
It is temporary and occurs as a prodrome prior to onset of a migraine headache in susceptible individuals. After the spasm has subsided, the arteries dilate which is associated with onset of typical pounding headache pain.
Dr. Bennett Werner
Dr. Bennett Werner
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