Results 11 to 20 of about 6,316 (263)

Differential diagnosis of vergence and saccade disorders in dyslexia

open access: yesScientific Reports, 2020
Previous studies suggest vergence and saccade abnormalities in dyslexic adolescents. However, these studies are mainly clinically based and do not provide objective measurements of eye movements, but rather subjectively evaluate vergence using haplosopic
Lindsey M. Ward, Zoï Kapoula
exaly   +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

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

Changes in vergence and accommodation parameters after smartphone use in healthy adults

open access: yesIndian Journal of Ophthalmology, 2021
Purpose: To assess pre and post vergence and accommodation parameters after monitored reading on a smartphone device. Methods: This prospective comparative study was performed in a tertiary eye care center for a duration of 6 months (December 2017 – May ...
Chitra Padavettan   +4 more
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

Virtual Reality-Based Screening Tool for Distance Horizontal Fusional Vergence in Orthotropic Young Subjects: A Prospective Pilot Study [PDF]

open access: yesLife
This prospective pilot study aimed to develop and evaluate a VR–based screening tool for assessing distance fusional vergence amplitude in healthy orthotropic young adults aged 18 to 30 years.
Jhih-Yi Lu   +7 more
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

Effects of virtual target size, position, and parallax on vergence-accommodation conflict as estimated by actual gaze

open access: yesScientific Reports, 2022
Due to the increased utilization of stereoscopic displays, the scope of the vergence–accommodation conflict has been studied extensively to reveal how the human visual system operates.
Chiuhsiang Joe Lin, Susmitha Canny
doaj   +1 more source

Large-scale cortico-cerebellar computations for horizontal and vertical vergence in humans

open access: yesScientific Reports, 2022
Horizontal and vertical vergence eye movements play a central role in binocular coordination. Neurophysiological studies suggest that cortical and subcortical regions in animals and humans are involved in horizontal vergence.
Hiroyuki Mitsudo   +3 more
doaj   +1 more source

Saccades and vergence performance in a population of children with vertigo and clinically assessed abnormal vergence capabilities. [PDF]

open access: yesPLoS ONE, 2011
PURPOSE: Early studies reported some abnormalities in saccade and vergence eye movements in children with vertigo and vergence deficiencies. The purpose of this study was to further examine saccade and vergence performance in a population of 44 children (
Maria Pia Bucci   +4 more
doaj   +1 more source

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