Results 31 to 40 of about 420,660 (342)

Effects of prolonged continuous computer gaming on physical and ocular symptoms and binocular vision functions in young healthy individuals [PDF]

open access: yesPeerJ, 2019
Background and Objective Addiction to computer gaming has become a social problem in Korea and elsewhere, and it has been enlisted as a mental health disorder by the World Health Organization.
Ji-Woo Lee   +4 more
doaj   +2 more sources

A covered eye fails to follow an object moving in depth

open access: yesScientific 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
doaj   +1 more source

Crystalline lens imaging during accommodation with a slit-scanning tomography system: preliminary results [PDF]

open access: yesEPJ Web of Conferences, 2020
A slit-scanning tomography system previously developed in the Centre of Physics of University of Minho allows to capture images of the eye and posteriorly calculus of the biometric (thickness and curvature) and optical (wavefront aberrations) properties ...
Gomes Jessica, Franco Sandra
doaj   +1 more source

Ocular Refraction at Birth and Its Development During the First Year of Life in a Large Cohort of Babies in a Single Center in Northern Italy [PDF]

open access: yes, 2020
The purpose of this study was to investigate refraction at birth and during the first year of life in a large cohort of babies born in a single center in Northern Italy.
Bartollino S.   +7 more
core   +1 more source

Axial length changes during accommodation in myopes and emmetropes [PDF]

open access: yes, 2010
Purpose: To investigate the influence of accommodation upon axial length (and a comprehensive range of ocular biometric parameters), in populations of young adult myopic and emmetropic subjects.
Cheong, Shiow Huoy   +3 more
core   +1 more source

Mechanism of accommodation: A review of theoretical propositions

open access: yesAfrican Vision and Eye Health, 2015
Accommodation is the process by which the human eye changes its focus to see objects at varying distances from the eye. For nearly 300 years, scientists have investigated and presented various views on the mechanism of accommodation.
Godwin O. Ovenseri-Ogbomo   +1 more
doaj   +1 more source

Orthoptic status before and immediately after heroin detoxification [PDF]

open access: yes, 2004
Aim: To determine whether changes in orthoptic status take place during withdrawal from heroin and/or methadone. Method: A prospective study of patients, using a repeated measures design, attending a 5 day naltrexone compressed opiate detoxification ...
Beaini, A.Y.   +3 more
core   +2 more sources

Gullstrand Intracapsular Accommodation Mechanism Revised

open access: yesPhotonics, 2022
More than a century has passed since Allvar Gullstrand proposed his so called “mechanism of intracapsular accommodation” based on the concept that the change in lens power during accommodation can be larger if the lens is modeled by two different ...
Norberto López-Gil
doaj   +1 more source

Pattern-Related Visual Stress, Chromaticity, and Accommodation [PDF]

open access: yes, 2010
PURPOSE. To investigate the impact of colored overlays on the accommodative response of individuals, with and without pattern- related visual stress (PRVS), a condition in which individuals manifest symptoms of perceptual distortion and discomfort when ...
Allen, Peter M   +3 more
core   +1 more source

Myopia and defocus: the current understanding [PDF]

open access: yes, 2011
The current theories relating to the development and progression of myopia are related to exposure of the eye to hyperopic defocus. This paper discusses these theories and the large body of recent research investigating the evidence behind them.
Day, Mhairi, Duffy, Lorraine
core   +1 more source

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