Results 1 to 10 of about 42,815 (285)
Sources of error in clinical measurement of the amplitude of accommodation [PDF]
Journal of Optometry, 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
Peter M Allen +2 more
exaly +6 more sources
Diurnal variations of amplitude of accommodation in different age groups. [PDF]
PLoS 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 +5 more sources
A Review of Depth of Focus in Measurement of the Amplitude of Accommodation [PDF]
Vision, 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 +4 more sources
Evidence of the Amplitude of Accommodation of School-Going Children in the 21st Century [PDF]
British 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 +2 more sources
Correlation between ocular parameters and amplitude of accommodation
Indian Journal of Ophthalmology, 2011 Fatih C Gundogan +2 more
doaj +4 more sources
Journal of Optometry, 2009 Purpose: We studied the accuracy and precision of 32 objective wavefront methods for finding the amplitude of accommodation obtained in 180 eyes. Methods: Ocular accommodation was stimulated with 0.5 D steps in target vergence spanning the full range of ...
Norberto López-Gil +3 more
doaj +3 more sources
Investigation of amplitude of accommodation among Ghanaian school children [PDF]
Australasian journal of optometry, The, 2012 Deficient amplitude of accommodation is the most frequently used criteria in an optometric practice in diagnosing whether a patient has accommodative insufficiency. This deficiency is determined based on an age-related expected finding calculated using Hofstetter's equation derived from Donder's and Duane's data.
Godwin O Ovenseri-Ogbomo +1 more
exaly +6 more sources
Repeatability of the amplitude of accommodation measured by a new generation autorefractor. [PDF]
PLoS ONE, 2020 SIGNIFICANCE:This is the first study to validate the repeatability of objective measurements of amplitude of accommodation (AA) using the TONOREF III (NIDEK Co., Ltd., Japan), which can measure the AA in 30 seconds.
Chang-Chi Weng +2 more
doaj +2 more sources
Optical factors influencing the amplitude of accommodation
Vision Research, 2017 The purpose of this work was to find plausible predictors among optical parameters that may explain the inter-individual differences in subjective amplitude of accommodation not explained by age. An exploratory multivariable regression analysis was carried out retrospectively on a dataset with 180 eyes from 97 subjects (ages ranged from 20 to 58years).
Iván Marín-Franch, Norberto López-Gil
exaly +3 more sources
Analysis of the calculation of the amplitude of accommodation [PDF]
Optik, 2016 The push-up method is routinely used to measure the amplitude of accommodation. In this method the diopter value corresponding to the nearest point that the eye can focus is determined, wearing his neutralizing lens, but not the value of the maximum ...
Dolores de Fez, Inmaculada Pascual
exaly +3 more sources