Gunn's sign

Gunn's sign

n.
An indication of arteriolar sclerosis observed ophthalmoscopically, in which the underlying vein at arteriovenous crossings is compressed. Also called Marcus Gunn's sign.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
References in periodicals archive ?
Well before any other campaigns were visible, Gunn's signs were everywhere out there.