Definition: A blind spot or area of decreased vision in the field of vision. Common symptom of a migraine aura.
Scotoma
By Mark Foley, D.O., About.com
Updated: October 04, 2008
About.com Health's Disease and Condition content is reviewed by the Medical Review Board
Explore Headaches & Migraines
Must Reads
About.com Special Features
Learn how you can reduce your your numbers with these nutrition and exercise tips. More >
Keep yourself, and your family, happy and healthy this fall with these tips. More >
Also from About.com:
©2009 About.com, a part of The New York Times Company.
All rights reserved.