Results 31 to 40 of about 10,330 (198)
Accuracy of formulae for secondary intraocular lens power calculations in pediatric aphakia
Journal of Current Ophthalmology, 2017 Purpose: To compare the accuracy of axial length vergence formulas versus refractive vergence formulas for secondary intraocular lens (IOL) implantation in pediatric aphakia. Methods: This retrospective comparative study, evaluated 31 eyes of 31 patients
Fouad R. Nakhli +2 more
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Differentiation between vergence and saccadic functional activity within the human frontal eye fields and midbrain revealed through fMRI. [PDF]
PLoS 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
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A role of eye vergence in covert attention. [PDF]
PLoS 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
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Bidirectional Synergistic Vergence [PDF]
Neuro-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
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Differential diagnosis of vergence and saccade disorders in dyslexia
Scientific 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
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Error Correction in Vergence Eye Movements: Evidence Supporting Hering’s Law
Journal 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
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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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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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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
doaj +1 more source
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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