Results 21 to 30 of about 3,165,927 (351)

Prevalence of refractive errors among the school-going children in East Sikkim

open access: yesIndian Journal of Ophthalmology, 2021
Purpose: Vision plays an important role in child's development for learning and communication. Uncorrected refractive error (URE) has become a major challenge to health care policy makers especially in school going children.
Karma Loday Bhutia   +3 more
doaj   +1 more source

Comparison of the new self-contained darkroom refractive screener versus table-top autorefractor and cycloplegia retinoscopy in detecting refractive error

open access: yesBMC Ophthalmology, 2023
Purpose By comparing the results of the new self-contained darkroom refractive screener (YD-SX-A) versus table-top autorefractor and cycloplegic retinoscopy, to evaluate the performance of the YD-SX-A in detecting refractive error in children and ...
Xianxian Wei   +10 more
doaj   +1 more source

Prevalence of Refractive Error and Associated Risk Factors in School-Age Children in Nepal: A Cross-sectional Study

open access: yesJournal of Lumbini Medical College, 2021
Introduction: The most common visual disorder in school age children is refractive error globally. The present study aimed to know the prevalence of refractive errors and explore the factors associated with the refractive error in school-age children in ...
Keshav Raj Bhandari   +3 more
doaj   +1 more source

Assessment of Refractive Status of 5-15 Years Old Children Attending Government Schools of Rural Agra [PDF]

open access: yesHealthline, 2022
Introduction: In children uncorrected refractive errors have a profound effect on educational and psychosocial development hence it is necessary to estimate the prevalence both at the community and at the school level to aid planning and implementation ...
Himanshu Kumar Yadav   +4 more
doaj   +1 more source

Deep learning for predicting refractive error from retinal fundus images [PDF]

open access: yesInvestigative Ophthalmology and Visual Science, 2017
Purpose We evaluate how deep learning can be applied to extract novel information such as refractive error from retinal fundus imaging. Methods Retinal fundus images used in this study were 45- and 30-degree field of view images from the UK Biobank and
A. Varadarajan   +9 more
semanticscholar   +1 more source

Application of big-data for epidemiological studies of refractive error.

open access: yesPLoS ONE, 2021
PurposeTo examine whether data sourced from electronic medical records (EMR) and a large industrial spectacle lens manufacturing database can estimate refractive error distribution within large populations as an alternative to typical population surveys ...
Michael Moore   +5 more
doaj   +1 more source

Stereoacuity after photorefractive keratectomy in myopia

open access: yesJournal of Current Ophthalmology, 2016
Purpose: Stereopsis, as a part of visual function, is the ability of differentiating between the two eyes' views (binocular disparity), due to the eyes' different positions.
Siamak Zarei-Ghanavati   +4 more
doaj   +1 more source

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. Refractive errors, if uncorrected, results in an impaired quality of life for millions of people worldwide ...
Kovin Naidoo, Jyoti Jaggernath
openaire   +3 more sources

Prevalence of refractive errors, uncorrected refractive error, and presbyopia in adults in India: A systematic review

open access: yesIndian Journal of Ophthalmology, 2019
Purpose: The objective of this review is to estimate the prevalence of refractive errors, uncorrected refractive error (URE), and uncorrected presbyopia in adults aged ≥30 years in India.
S. Sheeladevi   +5 more
semanticscholar   +1 more source

ERRORS OF REFRACTION. [PDF]

open access: yesJAMA: The Journal of the American Medical Association, 1895
These eighteen propositions will assist the beginner to more readily understand the many pages treating of the same subjects in all our text-books. With a second lecture on the lenses which correct the errors of refraction, and a third lecture on the frames which hold the lenses which correct the errors of refraction, we will have completed the "House
openaire   +2 more sources

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