Results 1 to 10 of about 46,071 (297)

Uncorrected refractive errors

open access: yesIndian Journal of Ophthalmology, 2012
Global estimates indicate that more than 2.3 billion people in the world suffer from poor vision due to refractive error; of which 670 million people are considered visually impaired because they do not have access to corrective treatment.
Kovin S Naidoo, Jyoti Jaggernath
doaj   +4 more sources

Refractive errors among medical students in Jordan: prevalence, types and possible risk factors

open access: yesFuture Science OA, 2023
Aim: This study aims to determine the prevalence of refractive errors among medical students in Jordan. Materials & methods: Cross-sectional model through an online questionnaire was conducted.
Asem A Alqudah   +2 more
doaj   +3 more sources

Evaluation of refractive errors in retinopathy of prematurity screening [PDF]

open access: yesMedicinski Glasnik, 2019
Aim To evaluate the frequency of refractive errors in premature children in retinopathy of prematurity (ROP) screening to find mutual connection of the prematurity level, disease activity and refractive errors.
Aida Pidro   +3 more
doaj   +2 more sources

The prevalence of uncorrected refractive errors in underserved rural areas

open access: yesJournal of Current Ophthalmology, 2017
Purpose: To determine the prevalence of uncorrected refractive errors, need for spectacles, and the determinants of unmet need in underserved rural areas of Iran.
Hassan Hashemi   +4 more
doaj   +2 more sources

Refractive surgery: the most cost-saving technique in refractive errors correction [PDF]

open access: yesInternational Journal of Ophthalmology, 2018
AIM: To compare the lifetime and annual economic burden of spectacles, contact lenses, and refractive surgery in correction of refractive errors. METHODS: This is a cross-sectional study with convenience sampling which 120 patients were interviewed in a
Seyed-Farzad Mohammadi   +4 more
doaj   +2 more sources

Refractive error blindness

open access: yesBulletin of the World Health Organization, 2001
Recent data suggest that a large number of people are blind in different parts of the world due to high refractive error because they are not using appropriate refractive correction.
Dandona Rakhi, Dandona Lalit
doaj   +2 more sources

Is there an association between convergence insufficiency and refractive errors?

open access: yesAfrican Vision and Eye Health, 2017
Background: Refractive errors and convergence insufficiency play major roles in reading efficiency. Uncorrected refractive errors are a primary cause of binocular anomalies, including convergence insufficiency.
Samuel Otabor Wajuihian
doaj   +4 more sources

Correction of refractive errors

open access: yesZdravniški Vestnik, 2005
Background: Spectacles and contact lenses are the most frequently used, the safest and the cheapest way to correct refractive errors. The development of keratorefractive surgery has brought new opportunities for correction of refractive errors in ...
Vladimir Pfeifer, Ivana Gardaševič
doaj   +2 more sources

Agreement of Ocular Biometry Measured by LenStar LS 900 and CASIA2 Optical Coherence Tomography [PDF]

open access: yesReviews in Clinical Medicine, 2021
Introduction:The present study aimed to compare the anterior segment measurements between optical low-coherence reflectometry (LenStar LS900) and anterior segment optical coherence tomography (CASIA2 OCT). Methods:A total of 198 right eyes of 198 healthy
Maliheh Karimpour   +4 more
doaj   +1 more source

Refractive Errors in State Junior High School Students in Bandung

open access: yesAlthea Medical Journal, 2016
Background: Uncorrected refractive error is one of the avoidable causes of vision impairment in children and adults. Vision problem in children has been shown to affect their psychological and academic performance.
Sabila Tasyakur Nikmah   +2 more
doaj   +3 more sources

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