Results 11 to 20 of about 14,972 (291)

A Bayesian model of distance perception from ocular convergence. [PDF]

open access: yesPLoS Computational Biology, 2017
Ocular convergence is one of the critical cues from which to estimate the absolute distance to objects in the world, because unlike most other distance cues a one-to-one mapping exists between absolute distance and ocular convergence.
Peter Scarfe, Paul B Hibbard
doaj   +7 more sources

Ocular convergence deficits in schizophrenia [PDF]

open access: yesFrontiers in Psychiatry, 2012
Individuals with schizophrenia have been reported to exhibit a higher prevalence of convergence insufficiency (CI) than the normal adult population. The purpose of this study was to determine if individuals with schizophrenia exhibit clinical signs of CI
Mark S Bolding   +5 more
doaj   +4 more sources

Judging distance from ocular convergence

open access: yesVision Research, 1998
Subjects misjudge distances considerably when forced to rely on extra-retinal information. Nevertheless, they can reproducibly set a target to the same distance as a reference, or to double or half that distance, even when they have to look back and forth between them because they are prevented from seeing one when looking at the other. Our explanation
Brenner, EM (Eli), Damme, WJM (Wim)
openaire   +4 more sources

Evaluation of ocular accommodation, convergence and fusional vergence changes during Ramadan [PDF]

open access: yesJournal of Fasting and Health, 2013
Purpose: There are a few researches regarding the effects of Islamic fasting on visual system. The aim of this study was to investigate the effects of Ramadan fasting on the amplitude of accommodation (AA), near point of convergence (NPC), positive and ...
Seyed Hosein Hoseini-Yazdi   +3 more
doaj   +6 more sources

Ocular Morbidity among Children of Government Schools of Kathmandu Valley: A Follow-up Study

open access: yesJournal of Nepal Medical Association, 2017
Introduction: Ocular and vision defects are common among school going children. Vision disorders, especially refractive error are the m disability of children and the leading cause of handicapping conditions in childhood.
Rajesh Kishor Shrestha   +1 more
doaj   +2 more sources

Effect of Yogic Ocular Exercises on Convergence Insufficiency

open access: yesLiaquat Medical Research Journal
Objective: To assess the effect of yogic ocular exercises on convergence insufficiency Methodology: A quasi-experimental study was conducted at the University of Lahore Teaching Hospital from July -August 2025.
Sharmeen Shahid   +3 more
doaj   +2 more sources

Orthoptic Treatment After Strabismus Surgery in Child Intermittent Divergent Strabismus [PDF]

open access: yesChildren
Purpose: To evaluate short-term motor and sensory–motor outcomes following postoperative OT in children with IXT after strabismus surgery. Methods: This prospective before–after observational study included children with IXT who underwent bilateral ...
Pedro Lino   +2 more
doaj   +2 more sources

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   +4 more sources

Subterranean mammals show convergent regression in ocular genes and enhancers, along with adaptation to tunneling

open access: yeseLife, 2017
The underground environment imposes unique demands on life that have led subterranean species to evolve specialized traits, many of which evolved convergently.
Raghavendran Partha   +7 more
doaj   +2 more sources

Diagnostic Criteria for Convergence Excess: Diagnostic Validity of Clinical Signs Associated with Near Esophoria [PDF]

open access: yesJournal of Eye Movement Research
To propose which tests may be used for diagnosing convergence excess. A prospective study of a consecutive clinical sample was performed. Patients (18–35 years) attending optometric care underwent subjective refraction, cover test, and Symptom ...
Pilar Cacho-Martínez   +3 more
doaj   +2 more sources

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