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 ?
Disorders in fusional vergence are often associated with the most common forms of strabismus.
Fusional vergence or motor fusion is an optomotor reflex that produces corrective eye movements to overcome retinal image disparity.
In contrast to cataract surgery, refractive vergence formulas are used to determine the power of the IOL to be implanted in phakic eyes.
When left and right images are displayed on the windshield, accommodation is still performed on the glass while vergence is at infinity.
Repeated vergence adaptation causes the decline of visual functions in watching stereoscopic television.
In an economy characterised by the con- vergence of globalised commerce, widely available information and rapid techno- logical progress, innovation and entre- preneurship will remain crucial factors in remaining competitive.
Ocular statuses, including accommodative response, accommodative microfluctuation, accommodative facility, positive and negative relative accommodation, gradient accommodative convergence/accommodation (AC/A), distant and near phoria, and positive and negative fusional vergence, were measured.
Helmchen, "Age-related changes of vergence under natural viewing conditions," Neurobiology of Aging, vol.
Drag folds present in the hanging walls shows southward vergence. Stereographic indicate that mesoscopic folds are plunging between the range of240deg and 290deg.
Synorogenic Neogene deposits indicate that major thrusts, with east vergence, moved to the east between ~20 Ma ago and present time (Jordan et al., 1993).
The coefficient of lagged error term (ECMt-1) in short-run model is negative and significant suggesting speed of con- vergence to equilibrium.