a downward turning of the visual axes of both eyes after visual functional stimuli have been removed. adj., adj cataphor´ic.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
1. A tendency of the visual axes of both eyes to deviate below the horizontal plane, in the absence of a stimulus to fusion. 2. Synonym of alternating deorsumduction. Note: also spelt cataphoria. See depression; hyperphoria.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann