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A member asked:
What could cause someone to have a sudden blackout in vision?
A doctor has provided 1 answer
Blackout of vision: Main causes of sudden black out: dehydration/illness, blood pressure drop, blood sugar drop (pre-diabetes/diabetes), vasovagal reaction, blood flow issue in brain (from dehydration, sugar level change, tumor of some type, intracranial pressure increase.) More info on eyedoc2020@blogspot.com
Answered 9/3/2019
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