Results 31 to 40 of about 3,196,627 (365)

The high prevalence of myopia in Korean children with influence of parental refractive errors: The 2008-2012 Korean National Health and Nutrition Examination Survey

open access: yesPLoS ONE, 2018
The present study was conducted to investigate the effect of parental refractive errors on myopic children in Korean families using a nationally representative survey.
D. Lim   +4 more
semanticscholar   +1 more source

Amblyopia, Strabismus and Refractive Errors in Congenital Ptosis: a systematic review and meta-analysis

open access: yesScientific Reports, 2018
Congenital ptosis may be associated with abnormalities of visual development and function, including amblyopia, strabismus and refractive errors. However, the prevalence estimates of these abnormalities vary widely.
Yijie Wang   +4 more
semanticscholar   +1 more source

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   +1 more source

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   +1 more source

Prevalence and Burden of Refractive Errors at National and Sub-national Levels in Iran

open access: yesJournal of Ophthalmic & Vision Research, 2022
Purpose: To estimate the prevalence, burden of refractive errors and their associated trend from 1990 to 2018 and geographic inequalities in Iran. Methods: Data regarding the epidemiology of refractive errors was extracted from three different sources ...
Seyed Mohammadi   +6 more
doaj   +1 more source

Prevalence of refractive errors in Tibetan adolescents

open access: yesBMC Ophthalmology, 2018
BackgroundThe prevalence of adolescent eye disease in remote areas of the Qinghai-Tibet Plateau has rarely been reported. To understand the prevalence of common eye diseases in Tibet, we performed ocular-disease screening on students from primary and ...
Xuehan Qian   +12 more
semanticscholar   +1 more source

Agreement between methods of retinoscopy, conventional subjective refraction and fogging subjective refraction [PDF]

open access: yesReviews in Clinical Medicine
Purpose: to compare the refractive error measurements achieved through three distinct techniques: retinoscopy, subjective method, and the subjective fogging method. Methods: Participants included 223 young adults aged 18 to 36 years (mean age: 25.63±5.31)
Atefeh Kebriaei   +6 more
doaj   +1 more source

A fast high-order solver for problems of scattering by heterogeneous bodies [PDF]

open access: yes, 2003
A new high-order integral algorithm for the solution of scattering problems by heterogeneous bodies is presented. Here, a scatterer is described by a (continuously or discontinuously) varying refractive index n(x) within a two-dimensional (2D) bounded ...
Bruno, Oscar P., Sei, Alain
core   +1 more source

A contralateral eye study comparing characteristics of corneal endothelial cells in bilateral keratoconus patients with unilateral corneal Vogt's striae

open access: yesJournal of Current Ophthalmology, 2018
Purpose: The aim of this study was to analyze and compare corneal endothelial cell morphology and characteristics in bilateral keratoconus (KCN) patients with unilateral Vogt's striae. Methods: Fifty patients aged 20–38 years were recruited in this cross-
Hadi Ostadi-moghaddam   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy