vergence

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vergence

 [ver´jens]
disjunctive movement of the eyes in opposite directions in adjusting to near or far vision; convergence or divergence.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ver·gence

(ver'jĕnts),
A disjunctive movement of the eyes in which the fixation axes are not parallel, as in convergence or divergence.
[L. vergo, to incline, to turn]
Farlex Partner Medical Dictionary © Farlex 2012

vergence

(vûr′jəns)
n.
1. A measure of the convergence or divergence of a pair of light rays, defined as the reciprocal of the distance between a point of reference and the point at which the rays intersect.
2. The inward or outward turning of one or both eyes that occurs when focusing on an object.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

ver·gence

(vĕr'jĕns)
A disjunctive movement of the eyes in which the fixation axes are not parallel, as in convergence or divergence.
[L. vergo, to incline, to turn]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

vergence

1. Movement of one or both eyes so that the visual axes converge or diverge.
2. The effect caused on a parallel beam of light by a convex (converging) or concave (diverging) lens.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

vergence 

1. Denotes divergence of light travelling from, or convergence of light travelling from, or to an object or image. The
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
References in periodicals archive ?
Around two thirds of the convergence total is said to be accommodative convergence, with fusionai convergence tidying up the final bits of the vergence response.
These results predict that vergence exercises would not only improve convergence but also accommodation, but accommodation exercises would have less effect on convergence.
Fusional vergence or motor fusion is an optomotor reflex that produces corrective eye movements to overcome retinal image disparity.
Phoria-myopia can occur indeed also in children with IXT, and increased vergence demand to control intermittent distance exotropia for near is likely the main cause of overaccommodation leading to the myopic shift.
Vergence movements are produced when the eyes move through equal angles in opposite directions to bring the focal point of binocular gaze to different viewing distances in depth, by disjunctively rotating the eyes.
Disorders in fusional vergence are often associated with the most common forms of strabismus.
However, the gravity folds are disharmonic and show opposite vergences to those related to drag folds developed on the flanks of the main anticline, showing also a basal detachment that separate this of an unfolded substrate.
Thrusting and fold vergence in the Narragansett Basin during [D.sub.1] was to the west (e.g., Mosher 1983, 1987), not northwest.
In individuals with brain injury, binocular vision is often fragile and the ability to maintain accommodation and vergence function might be abnormal.
This suture shows opposite structural vergences, to the west in the western branch and to the east in the eastern branch (Heredia et al., 2012).
Disjugate means the eyes move in opposite directions as in a vergence eye movement.
Sanchez, "Repeatability and agreement in the measurement of horizontal fusional vergences," Ophthalmic and Physiological Optics, vol.