Results 11 to 20 of about 6,755 (260)

Benefits from vergence rehabilitation: evidence for improvement of reading saccades and fixations

open access: yesFrontiers in Integrative Neuroscience, 2016
We hypothesize that binocular coordination of saccades is based on continuous neuroplasticity involving interactions of saccades and vergence. To test this hypothesis we study reading saccades in young students who were diagnosed for vergence disorders ...
François Daniel   +4 more
doaj   +1 more source

Differentiation between vergence and saccadic functional activity within the human frontal eye fields and midbrain revealed through fMRI. [PDF]

open access: yesPLoS ONE, 2011
Eye movement research has traditionally studied solely saccade and/or vergence eye movements by isolating these systems within a laboratory setting. While the neural correlates of saccadic eye movements are established, few studies have quantified the ...
Yelda Alkan   +2 more
doaj   +1 more source

A role of eye vergence in covert attention. [PDF]

open access: yesPLoS ONE, 2013
Covert spatial attention produces biases in perceptual and neural responses in the absence of overt orienting movements. The neural mechanism that gives rise to these effects is poorly understood.
Maria Solé Puig   +3 more
doaj   +1 more source

A Pilot Study of Disparity Vergence and Near Dissociated Phoria in Convergence Insufficiency Patients Before versus After Vergence Therapy

open access: yesFrontiers in Human Neuroscience, 2015
PURPOSE: This study examined the relationship between the near dissociated phoria and disparity vergence eye movements. Convergence insufficiency (CI) patients before vergence therapy were compared to: 1) the same patients after vergence therapy and 2 ...
Tara L. Alvarez
doaj   +1 more source

Bidirectional Synergistic Vergence [PDF]

open access: yesNeuro-Ophthalmology, 2015
A 14-year-old boy presented with left ptosis and squint since his childhood. In primary position he had left hypotropia with ptosis (levator function 2 mm). With elevation of the right eye, the left eye depresses and adducts; with depression of the right eye, the left eye elevates and abducts. Forced duction test revealed no restrictive pattern.
Gokcen, Gokce   +5 more
openaire   +2 more sources

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
doaj   +1 more source

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

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   +1 more source

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).
Samuel Otabor Wajuihian, Rekha Hansraj
doaj   +1 more source

Do standard optometric measures predict binocular coordination during reading?

open access: yesJournal of Eye Movement Research, 2021
In reading, binocular eye movements are required for optimal visual processing and thus, in case of asthenopia or reading problems, standard orthoptic and optometric routines check individual binocular vision by a variety of tests.
Joëlle Joss, Stephanie Jainta
doaj   +1 more source

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
doaj   +1 more source

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