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The jagged, shimmering visual sensation resembling the fortifications of a walled medieval town; the scintillating scotoma of migraine.
Synonym(s): fortification phenomenon
[G. teichos, wall, + opsis, vision]
Farlex Partner Medical Dictionary © Farlex 2012
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
fortification phenomenon'Maginot line' phenomenon Neurology An angulated figure near the point of fixation, which gradually spreads and assumes a lateral convex shape with an angulated scintillating edge, leaving a varying amount of scotomata in its wake. See Classical migraine.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.