Results 31 to 40 of about 35,860 (299)

Convergence reduces ocular counterroll (OCR) during static roll-tilt

open access: yesVision Research, 2004
When humans are roll-tilted around the naso-occipital axis, both eyes roll or tort in the opposite direction to roll-tilt, a phenomenon known as ocular counterroll (OCR). While the magnitude of OCR is primarily determined by vestibular, somatosensory, and proprioceptive input, direction of gaze also plays a major role.
Ooi, Daniel   +4 more
openaire   +3 more sources

Improving Visual Field Examination of the Macula Using Structural Information [PDF]

open access: yes, 2018
Purpose: To investigate a novel approach for structure-function modeling in glaucoma to improve visual field testing in the macula. Methods: We acquired data from the macular region in 20 healthy eyes and 31 with central glaucomatous damage.
Allegrini, D.   +4 more
core   +1 more source

Freezing of saccades in dopa-responsive parkinsonian syndrome

open access: yesAmerican Journal of Ophthalmology Case Reports, 2021
Purpose: Ocular motor abnormalities such as abnormal saccades are common in idiopathic Parkinson's disease (PD) and atypical parkinsonian syndrome, such as progressive supranuclear palsy (PSP) and corticobasal degeneration (CBD).
Techawit Likitgorn   +2 more
doaj   +1 more source

Perceived Vertical and Lateropulsion: Clinical Syndromes, Localization, and Prognosis [PDF]

open access: yes, 2000
We present a clinical classification of central vestibular syndromes according to the three major planes of action of the vestibulo-ocular reflex: yaw, roll, and pitch.
Brandt   +3 more
core   +1 more source

Association of Football Subconcussive Head Impacts With Ocular Near Point of Convergence [PDF]

open access: yesJAMA Ophthalmology, 2016
An increased understanding of the relationship between subconcussive head impacts and near point of convergence (NPC) ocular-motor function may be useful in delineating traumatic brain injury.To investigate whether repetitive subconcussive head impacts during preseason football practice cause changes in NPC.This prospective, observational study of 29 ...
Keisuke, Kawata   +11 more
openaire   +2 more sources

Binocular contrast discrimination needs monocular multiplicative noise. [PDF]

open access: yes, 2016
The effects of signal and noise on contrast discrimination are difficult to separate because of a singularity in the signal-detection-theory model of two-alternative forced-choice contrast discrimination (Katkov, Tsodyks, & Sagi, 2006).
Ding, Jian, LEVI, Dennis M.
core   +2 more sources

Visual-Vestibular Rehabilitation Using Orthoptic and Vestibulo-Ocular Reflex Training in Parinaud Syndrome: A Case Report

open access: yesBiomedical Sciences and Clinical Medicine
Parinaud syndrome, or dorsal midbrain syndrome, is a rare neuro-ophthalmological disorder characterized by vertical gaze palsy, convergence-retraction nystagmus, light-near dissociation, and impaired convergence.
priyanka jeyaraj   +2 more
doaj   +1 more source

Ocular effects of acute ingestion of Cola nitida(Linn) on healthy adult volunteers

open access: yesAfrican Vision and Eye Health, 2007
Cola nitida Linn (Sterculiaceae) is an economic plant widely distributed throughout West Africa and possibly other parts of Africa.Members are malvalves because of their lobular nature.
S. A. Igwe, D. N. Akunyili, E. U. Ikonne
doaj   +1 more source

A landmark paper in face recognition [PDF]

open access: yes, 2006
Good registration (alignment to a reference) is essential for accurate face recognition. The effects of the number of landmarks on the mean localization error and the recognition performance are studied.
Bazen, A.M.   +3 more
core   +2 more sources

Prevalence of strabismus among preschool children in eastern China and comparison at a 5-year interval: a population-based cross-sectional study

open access: yesBMJ Open, 2021
Objective To update data on strabismus and evaluate the changes in prevalence and patterns among preschoolers in eastern China over a period of 5 years.Design Nanjing Eye Study, a longitudinal population-based study.Setting Recruitment and testing in ...
Yue Wang   +14 more
doaj   +1 more source

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