Donders' law

Don·ders' law

(dŏn′dərz)
n.
The principle that the rotation of the eyeball is determined by the distance of the object from the median plane and the line of the horizon.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.