Results 21 to 30 of about 6,513 (259)
Do standard optometric measures predict binocular coordination during reading?
Journal 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
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Surfaces of forced vergence disparity
African Vision and Eye Health, 2013 Purpose: To introduce the concept of surfaces offorced vergence disparity using measurementsof fixation disparity from three young, healthy individuals. Method: Fixation disparities were measured in three individuals in relation to variation in stimulus
A. Rubin
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Changes in vergence and accommodation parameters after smartphone use in healthy adults
Indian 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
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Vergence anomalies in a sample of high school students in South Africa
Journal 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
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Attentional Selection Accompanied by Eye Vergence as Revealed by Event-Related Brain Potentials. [PDF]
PLoS ONE, 2016 Neural mechanisms of attention allow selective sensory information processing. Top-down deployment of visual-spatial attention is conveyed by cortical feedback connections from frontal regions to lower sensory areas modulating late stimulus responses.
Maria Sole Puig +5 more
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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
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 +4 more
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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 +2 more
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Advanced Robotics Research, EarlyView.This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino +7 more
wiley +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 +6 more
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