Results 11 to 20 of about 336,794 (287)

Effect of accommodation on peripheral ocular aberrations

open access: yesJournal of Vision, 2009
Changes in peripheral aberrations, particularly higher order aberrations, as a function of accommodation have received little attention. Wavefront aberrations were measured for the right eyes of 9 young adult emmetropes at 38 field positions in the central 42 x 32 degrees of the visual field. Subjects accommodated monocularly to targets at vergences of
Ankit, Mathur   +2 more
openaire   +3 more sources

Mechanism of accommodation: A review of theoretical propositions [PDF]

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   +2 more sources

Age-Related changes in ocular aberrations with accommodation

open access: yesJournal of Vision, 2007
This study investigates the changes in aberrations with monocular accommodation as a function of age. Second-order and higher order wavefront aberrations and pupil size were measured as a function of accommodation demand over the range of 0-4 D in the right eyes of 47 normal subjects with ages between 17 and 56 years.
Radhakrishnan, Hema; id_orcid 0000-0002-8898-2453   +1 more
openaire   +5 more sources

Pharmacological and physiological manipulation of ocular accommodation [PDF]

open access: yes
The primary aim of this thesis was to investigate in-vivo changes to ocular morphology during ocular accommodation, with particular attention to ciliary muscle changes, using pharmacological agents and physiological stimuli.
Randhawa, Parminder
core   +8 more sources

Correlation between ocular parameters and amplitude of accommodation

open access: yesIndian Journal of Ophthalmology, 2011
Fatih C Gundogan   +2 more
doaj   +3 more sources

Visual efficiency among teenaged athletes and non-athletes [PDF]

open access: yesInternational Journal of Ophthalmology, 2017
AIM: To compare visual efficiency, specifically accom-modation, vergence, and oculomotor functions among athletes and non-athletes. METHODS: A cross-sectional study on sports vision screening was used to evaluate the visual skills of 214 elementary ...
Rokiah Omar   +4 more
doaj   +1 more source

Accommodative Exercises to Lower Intraocular Pressure

open access: yesJournal of Ophthalmology, 2020
Purpose. This study investigated how a conscious change in ocular accommodation affects intraocular pressure (IOP) and ocular biometrics in healthy adult volunteers of different ages. Methods. Thirty-five healthy volunteers without ocular disease or past
Thomas J. Stokkermans   +6 more
doaj   +1 more source

Functional Neuroanatomy of the Human Accommodation Response to an “E” Target Varying from -3 to -6 Diopters

open access: yesFrontiers in Integrative Neuroscience, 2020
Background: We aimed to identify the functional brain networks involved in the regulation of visual accommodation by contrasting the cortical functional areas evoked by foveal fixation to an “E” target, which were subservient to the accommodation ...
Xiaoli Lv   +9 more
doaj   +1 more source

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

The Effect of Accommodation on Peripheral Refraction under Two Illumination Conditions

open access: yesPhotonics, 2022
The clinical importance of peripheral refraction as a function of accommodation has become increasingly evident in the last years with special attention given to myopia control. Low order ocular aberrations were measured with a Hartmann–Shack aberrometer
Raquel van Ginkel   +3 more
doaj   +1 more source

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