Results 31 to 40 of about 55,627 (339)

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

Con-vergence

open access: yesJournal of Library Outreach and Engagement, 2020
Popular culture conventions (cons) can be powerful opportunities for library outreach, but they are underutilized or ignored as possibilities for many libraries. This article summarizes the results of a survey of libraries concerning their own con attendance/non-attendance as well as perceived benefits and actual barriers to attending.
Laddusaw, Sierra, Brett, Jeremy
openaire   +3 more sources

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

Attentional Selection Accompanied by Eye Vergence as Revealed by Event-Related Brain Potentials. [PDF]

open access: yesPLoS 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
doaj   +1 more source

Moment-to-Moment Detection of Internal Thought during Video Viewing from Eye Vergence Behavior

open access: yesACM Multimedia, 2019
Internal thought refers to the process of directing attention away from a primary visual task to internal cognitive processing. It is pervasive and closely related to primary task performance.
Michael Xuelin Huang   +4 more
semanticscholar   +1 more source

Surfaces of forced vergence disparity

open access: yesAfrican 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
doaj   +1 more source

Does vision extract absolute distance from vergence?

open access: yesAttention, Perception, & Psychophysics, 2019
Since Kepler (1604) and Descartes (1637), ‘vergence’ (the angular rotation of the eyes) has been thought of as one of our most important absolute distance cues.
P. Linton
semanticscholar   +1 more source

Accommodation Responds to Optical Vergence and Not Defocus Blur Alone.

open access: yesInvestigative Ophthalmology and Visual Science, 2017
Purpose To determine whether changes in wavefront spherical curvature (optical vergence) are a directional cue for accommodation. Methods Nine subjects participated in this experiment.
A. D. Del Águila-Carrasco   +6 more
semanticscholar   +1 more source

Symptomatic vergence disorders in junior high school children in Ghana

open access: yesAfrican 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
doaj   +1 more source

Objective Assessment of Disparity Vergence after Treatment of Symptomatic Convergence Insufficiency in Children

open access: yesOptometry and Vision Science, 2018
SIGNIFICANCE This first report of the use of objective measures of disparity vergence as outcome measures for symptomatic convergence insufficiency in children provides additional information that is not accessible with clinical tests.
M. Scheiman, H. Talasan, T. Alvarez
semanticscholar   +1 more source

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