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.

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]

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.

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]

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.

vergence 

1. Denotes divergence of light travelling from, or convergence of light travelling from, or to an object or image. The
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.