Results 1 to 10 of about 114,410 (299)

Error Correction in Vergence Eye Movements: Evidence Supporting Hering’s Law [PDF]

open access: yesJournal of Eye Movement Research, 2012
In pure symmetrical vergence eye movements, a fusion initiating component quickly brings the eyes close to the desired position. A small error usually remains after this response which must be corrected to attain the small final vergence error (i.e ...
John L. Semmlow   +2 more
doaj   +3 more sources

Consequences of Traumatic Brain Injury for Human Vergence Dynamics [PDF]

open access: yesFrontiers in Neurology, 2015
Purpose: Traumatic brain injury involving loss of consciousness has focal effects in the human brainstem, suggesting that it may have particular consequences for eye movement control.
Christopher W Tyler   +5 more
doaj   +6 more sources

Evidence Supporting Open-Loop Control During Early Vergence [PDF]

open access: yesJournal of Eye Movement Research, 2013
Disparity vergence eye movements were analyzed to determine if the early component of this response operates under open-loop, or preprogrammed, control. The analysis compares ratios of peak velocity to response amplitude (i.e., main sequence ratios) for ...
John Semmlow   +2 more
doaj   +3 more sources

Vergence tracking: a tool to assess oculomotor performance in stereoscopic displays [PDF]

open access: yesJournal of Eye Movement Research, 2012
Oculomotor conflict induced between the accommodative and vergence components in stereoscopic displays represents an unnatural viewing condition. There is now some evidence that stereoscopic viewing may induce discomfort and changes in oculomotor ...
Pascaline Neveu   +4 more
doaj   +4 more sources

Comparison of accommodation and vergence parameters in early and late-onset myopic adults [PDF]

open access: yesBMC Ophthalmology
Significance Myopia is a growing public health concern, and understanding the visual function differences among adults with different ages of myopia onset is essential for effective management.
Shravya   +2 more
doaj   +2 more sources

Vergence anomalies in a sample of high school students in South Africa

open access: yesJournal of Optometry, 2016
Aim: To study the prevalence of nearpoint vergence anomalies (convergence insufficiency, convergence excess and fusional vergence dysfunction) and association with gender, age groups, grade level and study site (suburban and rural).
Rekha Hansraj
exaly   +3 more sources

Effect of the accommodation-vergence conflict on vergence eye movements

open access: yesVision Research, 2014
With the broader use of stereoscopic displays, a flurry of research activity about the accommodation-vergence conflict has emerged to highlight the implications for the human visual system. In stereoscopic displays, the introduction of binocular disparities requires the eyes to make vergence movements.
Cyril Vienne   +2 more
exaly   +3 more sources

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

open access: yesFrontiers 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, Suril Gohel
exaly   +3 more sources

Dissociate triggering of conjunctive and disjunctive eye movements [PDF]

open access: yesScientific Reports
In natural behavior, our eyes must coordinate two types of movements when looking between points in space: conjunctive movements (where both eyes move together) and disjunctive movements (where the eyes move in opposite direction to change their ...
Baptiste Caziot, Frank Bremmer
doaj   +2 more sources

Vergence Formula for Estimating the Refractive Status of Aphakic Eyes in Pediatric Patients

open access: yesFrontiers in Medicine, 2022
Clinical RelevanceA vergence formula may provide a simple and reliable calculation of the refractive status of aphakic eyes.BackgroundMeasuring the refractive error of pediatric eyes with aphakia is difficult.
Linlu Tian   +6 more
doaj   +1 more source

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