Results 31 to 40 of about 9,226 (246)

Clinical application of accommodating intraocular lens [PDF]

open access: yesInternational Journal of Ophthalmology, 2018
The present review describes recent advances in application of accommodating intraocular lenses (AIOLs). Standard monofocal intraocular lenses (MIOLs) only correct distance vision, while AIOLs are designed to allow both good distance vision and near ...
You-Ling Liang, Song-Bai Jia
doaj   +1 more source

Effect of lighting on amplitude of accommodation among adolescence smartphone users [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2021
Inappropriate lighting level causes digital eye strain among smartphone users. This experimental study employed 33 students aged 12-15 years in 3 lower secondary schools in Pathumthani province, Thailand. Amplitude of accommodation (AA) was measured by
Sasitorn Taptagaporn   +4 more
doaj   +1 more source

A comparison in university students of the amplitude of accommodation determined subjectively

open access: yesAfrican Vision and Eye Health, 2016
Background: Historically, the push-up and the minus lens methods have been used for the measurements of the amplitude of accommodation, and the differences between the results of these methods are well known.
Solani D. Mathebula   +4 more
doaj   +1 more source

Changes in Lens Thickness and Amplitude of Accommodation with Age [PDF]

open access: yesInternational Journal of Anatomy Radiology and Surgery, 2020
Introduction: The human crystalline lens is a transparent, biconvex structure in the eye that, along with the cornea, helps to refract light to be focused on the retina and, by changing shape, it adjusts focal distance and this function of the lens is
Farah Maqsood, Wafa Abdullah Alyahya
doaj   +1 more source

Visual acuity, amplitude of accommodation and near point of convergence and academic achievement in primary school learners in Bloemfontein

open access: yesAfrican Vision and Eye Health, 2014
Introduction: Learning problems influencing the social and psychological development of children may result from poor visual acuity (VA), insufficient amplitude of accommodation and receded near point of convergence (NPC). This study assessed Grade 4 and
Mariette Nel   +5 more
doaj   +1 more source

Amplitude dependent accommodative dynamics in humans

open access: yesVision Research, 2003
Dynamics of accommodation (far-to-near focus) and disaccommodation (near-to-far focus) are described as a function of response amplitude. Accommodative responses to step stimuli of various amplitudes presented in real space were measured in eight 20-30 year old subjects.
Kasthurirangan, Sanjeev   +2 more
openaire   +2 more sources

Objective Accommodation Amplitude Measurements Using a New Autorefractometer Device

open access: yesBeyoglu Eye Journal, 2019
INTRODUCTION[|]To measure the value of objective accommodation amplitude (AA) in patients using the new autorefractometer device and to evaluate the effects of age, refraction errors, pupil diameter on objective AA measurements.[¤]METHODS[|]Three hundred
Kemal Özülken, Hasan Kızıltoprak
doaj   +1 more source

Comparing measurement techniques of accommodative amplitudes

open access: yesIndian Journal of Ophthalmology, 2014
Aim and Background: This study was designed to compare four standard procedures, for determining the monocular accommodative amplitudes. Materials and Methods: Fifty-two students participated in this analytical-descriptive study.
Hamed Momeni-Moghaddam   +2 more
openaire   +3 more sources

Interaction of accommodative and subjective diagnostic criteria of accommodation disorders

open access: yesРоссийский офтальмологический журнал, 2019
Purpose: to study the relationship of accommodative (objective) and subjective criteria of different types of accommodation disorders.Material and methods. 62 patients (124 eyes) with myopic refraction, aged 10 to 18, were divided into 6 groups according
M. V. Makhova, V. V. Strakhov
doaj   +1 more source

Introducing Dynamic Stimulation Aberrometry

open access: yesOphthalmology Science, 2023
Purpose: The objective measurement of binocular accommodation remains a challenge. The dynamic stimulation aberrometry (DSA) system uses wavefront measurements to dynamically assess accommodation.
Maximilian Hammer   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy