Results 41 to 50 of about 10,330 (198)

Gaze Dependent Vergence Adaptation.

, 2015
PURPOSE The innervational pattern of extraocular muscles that maintain ocular alignment vary with gaze direction, age, and orbital anatomy. A muscle paresis, for example, may cause a misalignment, which is characterized by a gaze dependent deviation ...
Abegg, Mathias, Dysli, Denise-Muriel
core   +1 more source

A covered eye fails to follow an object moving in depth

Scientific Reports, 2021
To clearly view approaching objects, the eyes rotate inward (vergence), and the intraocular lenses focus (accommodation). Current ocular control models assume both eyes are driven by unitary vergence and unitary accommodation commands that causally ...
Arvind Chandna, Jeremy Badler, Devashish Singh, Scott Watamaniuk, Stephen Heinen   +4 more
doaj   +1 more source

Dynamic vergence eye movements in strabismus and amblyopia: asymmetric vergence. [PDF]

British Journal of Ophthalmology, 1981
Dynamic vergence eye movements in response to step target displacements along the midline were measured by an infrared reflection technique in 11 patients having either intermittent strabismus, constants-strabismus amblyopia, or amblyopia without strabismus.
R V, Kenyon, K J, Ciuffreda, L, Stark
openaire   +3 more sources

Symptomatic vergence disorders in junior high school children in Ghana

African Vision and Eye Health, 2016
Background: Optometrists in Ghana are hampered in performing comprehensive binocular vision assessments, because of the lack of appropriate instruments leading to a paucity of data on vergence disorders and their association with asthenopia among ...
Charles Darko-Takyi, Naimah E. Khan, Urvashni Nirghini   +2 more
doaj   +1 more source

The spatial averaging of disparities in brief, static random-dot stereograms [PDF]

, 1999
Visual images from the two eyes are transmitted to the brain. Because the eyes are horizontally separated, there is a horizontal disparity between the two images. The amount of disparity between the images of a given point depends on the distance of that
Popple, A.V., Popple, Ariella Vered
core  

Depth constancy and the absolute vergence anomaly [PDF]

Binocular disparity provides information about the depth structure of objects and surfaces in our environment. Since disparity depends on the distance to objects as well as the depth separation of points, information about distance is required to ...
Ranson, Rebecca E, Scarfe, Peter, van Dam, Loes C. J., Hibbard, Paul B., Van Dam, Loes, van Dam, Loes C J, Hibbard, Paul B, Ranson, Rebecca E., Ranson, Rebecca, Hibbard, Paul   +9 more
core   +1 more source

Patterns of Pupillary Activity During Binocular Disparity Resolution

Frontiers in Neurology, 2018
This study examined the dynamic coordination between disconjugate, vergence eye movements, and pupil size in 52 normal subjects during binocular disparity stimulation in a virtual reality display.
Carey D. Balaban, Alex Kiderman, Mikhaylo Szczupak, Robin C. Ashmore, Michael E. Hoffer, Michael E. Hoffer, Michael E. Hoffer   +6 more
doaj   +1 more source

Characterizing Refractive Errors, Near Accommodative and Vergence Anomalies and Symptoms in an Optometry Clinic

British and Irish Orthoptic Journal, 2022
Background: Refractive, accommodative and vergence parameters and associated anomalies cause symptoms of asthenopia. Patients consult eye care practitioners mainly due to symptoms they experience. To enhance targeted treatments from various anomalies, it
Samuel O. Wajuihian
doaj   +1 more source

Lasting Deficiencies in Vergence Eye Movements in Patients with Peripheral or Central Vertigo: Improvements After Four Sessions of REMOBI Neurotraining and Associated Functional Benefits

Brain Sciences
The vestibular function is in synergism with the oculomotor vergence. Vertigo may be related to vergence disorders and conversely, vestibular pathologies may affect vergence.
Zoï Kapoula, Ganesan Aakash, Guèrin Rèmi, Alain Bauwens, Benoit Martiat, Valentine Leonard   +5 more
doaj   +1 more source

Functional activity within the frontal eye fields, posterior parietal cortex and cerebellar vermis significantly correlates to symmetrical vergence peak velocity: An ROI-based, fMRI study of vergence training

Frontiers in Integrative Neuroscience, 2014
Convergence insufficiency (CI) is a prevalent binocular vision disorder with symptoms that include double/blurred vision, eyestrain, and headaches when engaged in reading or other near work.
Tara L Alvarez, Raj eJaswal, Suril eGohel, Bharat B Biswal   +3 more
doaj   +1 more source