Results 31 to 40 of about 2,641 (163)

Visual Field Parameters and Pupil Size Measured through and Compared between Colored Contact Lenses and Clear Contact Lenses: A Prospective Comparative Pilot Study in Asian Population

open access: yesSiriraj Medical Journal, 2022
Objective: To compare visual field (VF) parameters and pupil size as measured through colored and clear contact lenses (CL) in Asian population. Materials and Methods: Demographic data and CL prescription data were recorded during the baseline visit ...
Atiporn Thuangtong   +2 more
doaj   +1 more source

A Comparison of Autorefraction and Subjective Refraction in an Academic Optometry Clinic

open access: yesCureus, 2023
 Refractive error is the most common cause of decreased visual acuity. Refractive measurement in adults consists of cycloplegic (objective) and manifest (subjective) refraction. Although the effectiveness of autorefraction is a crucial factor, there needs to be more information on its accuracy and precision on each autorefractor compared with ...
Kemchoknatee, Parinee   +4 more
openaire   +2 more sources

Impact of Electronic Gadgets Overuse on Myopia Progression among Young People: A Prospective Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2023
Introduction: Myopia has a multifactorial aetiology, involving interplay between environmental, genetic and behavioural factors. In today’s times of digitalisation, young people are now more exposed to digital devices, which is another possible risk ...
Pooja Singh, Pankaj Choudhary
doaj   +1 more source

Myopia Control Efficacy of Grid Dimension Multiregion Spectacle Lenses: A One-Year Randomized Double-Masked Controlled Trial. [PDF]

open access: yesJ Ophthalmol
Purpose To evaluate the effectiveness and safety of grid dimension multiregion (GDM) spectacle lenses in myopia control and compare the myopia control effects between GDM and highly aspherical lenslets (HAL) spectacle lenses. Methods A total of 150 children aged 6–13 years were enrolled at the Hangzhou Campus of Eye Hospital of Wenzhou Medical ...
Wang J, Lu W, Chen R.
europepmc   +2 more sources

Accommodative Lag by Autorefraction and Two Dynamic Retinoscopy Methods [PDF]

open access: yesOptometry and Vision Science, 2009
ABSTRACT Purpose. To evaluate two clinical procedures, Monocular Estimate Method (MEM) and Nott retinoscopy, for detecting accommodative lags 1.00 diopter (D) or greater in children as identified by an open‐field autorefractor. Methods.
Ruth E, Manny   +16 more
openaire   +2 more sources

Agreement of a Pyramidal Wavefront-Based Autorefraction with Dry, Cycloplegic, and Subjective Refraction in Myopic Refractive Surgery Candidates

open access: yesJournal of Current Ophthalmology
Purpose To evaluate the repeatability of a pyramidal wavefront-based refraction (WFR) measurement and its agreement with dry autorefraction (DR), cycloplegic autorefraction (CR), and subjective refraction (SR) in myopic refractive surgery candidates ...
Siamak Zarei-Ghanavati   +5 more
doaj   +1 more source

Accuracy and repeatability of refractive error measurements by photorefractometry

open access: yesJournal of Ophthalmic & Vision Research, 2015
Purpose: To determine the accuracy of photorefraction and autorefraction as compared to cycloautorefraction and to detect the repeatability of photorefraction.
Zhale Rajavi   +5 more
doaj   +1 more source

The impacts of high refractive errors on self‐reported visual function and visual concern

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To examine the association between refractive errors and self‐reported visual function and visual concern, considering self‐perceived present eyesight, concerns about vision, accomplishing less and limitations in daily activities in an eye‐healthy cohort.
Jens Riis Møller   +9 more
wiley   +1 more source

Refractive error correction among urban and rural school children using two self-adjustable spectacles

open access: yesBMJ Open Ophthalmology, 2023
Objective Self-refracting spectacles (SRSs) have different optical and mechanical designs, which may affect the refractive outcome, depending on the experience of the end user.
Stephen Ocansey   +3 more
doaj   +1 more source

Optical myopia control interventions: Evaluation of methods and success in a real‐world population

open access: yesOptometry and Vision Science, Volume 103, Issue 6, June 2026.
Abstract Purpose To explore methods of evaluating success of optical myopia control interventions, and to apply these methods retrospectively to a clinical population. Methods A retrospective cohort study was conducted on pediatric patients attending a United Kingdom myopia clinic and used defocus incorporated multiple segments (DIMS) spectacle lenses,
Mhairi Day, Stephanie Kearney
wiley   +1 more source

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