Results 1 to 10 of about 42,651 (303)

Diurnal variations of amplitude of accommodation in different age groups. [PDF]

open access: goldPLoS ONE, 2019
Clinical assessment of amplitude of accommodation (AA) involves measuring the ability of the eye to change its optical power and focus on near tasks/objects. AA gradually decreases with increasing age.
Sun-Mi Park   +3 more
doaj   +6 more sources

Sources of error in clinical measurement of the amplitude of accommodation. [PDF]

open access: goldJ Optom, 2020
Measurement of the amplitude of accommodation is established as a procedure in a routine optometric eye examination. However, clinical methods of measurement of this basic optical function have several sources of error. They are numerous and diverse, and
Burns DH, Allen PM, Edgar DF, Evans BJW.
europepmc   +6 more sources

Evidence of the Amplitude of Accommodation of School-Going Children in the 21st Century [PDF]

open access: diamondBritish and Irish Orthoptic Journal, 2023
Purpose: The study sought to compare the normative amplitude of accommodation (AoA) in school-going children from studies in the 21st century, based on pooled estimates from meta-analyses, to assess their agreement to Hofstetter’s average formula ...
Alvin Jeffrey Munsamy   +7 more
doaj   +4 more sources

Effect of caffeine on the amplitude of accommodation and pupil size

open access: diamondBLDE University Journal of Health Sciences, 2023
PURPOSE: It is a well-known fact that caffeine is an autonomic stimulant, which is said to have a significant effect on visual performance. This study was planned to investigate the effect of caffeine on the amplitude of accommodation and pupil size in ...
Vaibhavi V Naik, Mahima Chandra
doaj   +2 more sources

Amplitude, Latency, and Peak Velocity in Accommodation and Disaccommodation Dynamics [PDF]

open access: hybrid, 2017
The aim of this work was to ascertain whether there are differences in amplitude, latency, and peak velocity of accommodation and disaccommodation responses when different analysis strategies are used to compute them, such as fitting different functions ...
Antonio J. Del Águila‐Carrasco   +4 more
openalex   +6 more sources

Loss of amplitude of accommodation in pre-presbyopic HIV and AIDS patients under treatment with antiretrovirals

open access: goldAfrican Vision and Eye Health, 2017
Background: The prevalence of HIV and AIDS is causing an enormous public health burden. Its manifestations spare no organ. Ocular complications are mainly attributed to various opportunistic infections which are directly or indirectly caused by immune ...
Solani D. Mathebula   +1 more
doaj   +3 more sources

Effect of diabetes on amplitude of accommodation [PDF]

open access: greenInvestigative Ophthalmology & Visual Science, 2014
People with diabetes have accelerated age-related biometric ocular changes compared with people without diabetes. We determined the effect of type 1 diabetes on amplitude of accommodation.There were 43 participants (33 ± 8 years) with type 1 diabetes and 32 (34 ± 8 years) age-balanced controls.
Muhammad Ismail Adnan   +6 more
openalex   +4 more sources

A Review of Depth of Focus in Measurement of the Amplitude of Accommodation [PDF]

open access: yesVision, 2018
The aim of this review is to investigate the role of depth of focus (DoF) as a potential confounding variable in the measurement of the amplitude of accommodation (AoA).
David H. Burns   +3 more
doaj   +2 more sources

Measurement of amplitude of accommodation in young persons [PDF]

open access: bronzeClinical and Experimental Optometry, 2015
The aim was to evaluate the amplitude of accommodation using test objects designed with constant angular size corresponding to 6/6 visual acuity.In total, 155 young volunteers with good ocular and systemic health aged between eight and 25 years were recruited for the study.
Nikolai M. Sergienko, Dmitry P Nikonenko
openalex   +3 more sources

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