vergence


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ver·gence

 (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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

vergence

(ˈvɜːdʒəns)
n
(Physiology) the inward or outward turning movement of the eyes in convergence or divergence
[C19: from verge2 + -ence]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
"While the external symptoms are related to dry eyes, the internal symptoms are related to refractive correction, accommodation -- the ability of the eye to focus on near tasks, or vergence -- the ability of the eye to look in opposite directions to obtain or maintain single binocular vision," explains Dr Omar Rafiq, Consultant, Ophthalmology, Al Zahra Hospital Sharjah.
Vergence can be described as the simultaneous movement of both eyes in opposite directions to obtain or maintain single binocular vision.
Groups of 'poor' readers have been found to show reduced amplitudes of accommodation, (1,4,5) reduced accommodative facility, (4,5) reduced vergence amplitudes (1,5) and reduced near point of convergence, (4) and have poorer saccadic eye movements, (6,7) compared to control groups.
In conjunction with the closing of the acquisition by mid-April 2019, Pro Natura's management will continue to support the company under the transition period as well as join the international team of Vergence Naturals.
Vergence deficits occurred in 34 and 15 percent of children in the DD and TD groups, respectively (difference, 19 percent; 95 percent CI, −2.2 to 41 percent; P = 0.08).
Vergence findings and horizontal vergence dysfunction among first year university students in Benin City, Nigeria.
A ?-?|?- vergence' is being launched in Loughborough in collaboration with a Japanese university.
As a result of the acquisition, Green Tree is now a wholly-owned subsidiary of Abattis and Green Tree's products will become available through Abattis's wholly-owned subsidiary Vergence Naturals Ltd.
The vergence refers to the simultaneous eye movements in opposite directions that human could obtain the single binocular vision, and the accommodation is the change that optical power enters human eyes to maintain the sharpness of the image.
To binocularly view an object of interest, two different types of eye movements are used: saccades and vergence. Saccades are rapid conjugate (version) movements used to orient the eyes toward a new direction by rotating the two eyes with similar angles.