Results 11 to 20 of about 197,605 (292)

Prevalence of visual impairment due to refractive error among children and adolescents in Ethiopia: A systematic review and meta-analysis.

PLoS ONE, 2022
IntroductionGlobally, the prevalence of refractive error was 12%, and visual impairment due to refractive error was 2.1%. In sub-Saharan Africa, the prevalence of refractive error and visual impairment due to refractive error was 12.6% and 3.4 ...
Daniel Atlaw, Zerihun Shiferaw, Biniyam Sahiledengele, Sisay Degno, Ayele Mamo, Demisu Zenbaba, Habtamu Gezahegn, Fikreab Desta, Wogene Negash, Tesfaye Assefa, Mujib Abdela, Abbul Hasano, Gashaw Walle, Chala Kene, Degefa Gomora, Vijay Kumar Chattu   +15 more
doaj   +1 more source

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

Indian 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, Sonam Choden Bhutia, Nisha Gupta, Diki O Shenga   +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

BMC 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, Lili Li, Li Jiang, Haiyan Lu, Huiyao Huang, Dedong Zhong, Liang Pan, Diefeng Wei, Yun Han, Hong Lin, Qi Chen   +10 more
doaj   +1 more source

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

Journal 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, Deepak Bahadur Pachhai, Chet Raj Pant, Ashish Jamarkattel   +3 more
doaj   +1 more source

Prevalence and causes of functional low vision in school-age children: results from standardized population surveys in Asia, Africa, and Latin America. [PDF]

, 2008
PURPOSE: Data on the prevalence and causes of functional low vision (FLV) in adults and children are lacking but are important for planning low-vision services.
Ellwein, Leon B, Gilbert, Clare E, Refractive Error Study in Children Study Group   +2 more
core   +1 more source

Stereoacuity after photorefractive keratectomy in myopia

Journal 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, Hamid Gharaee, Alireza Eslampour, Asieh Ehsaei, Mojtaba Abrishami   +4 more
doaj   +1 more source

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

PLoS 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, James Loughman, John S Butler, Arne Ohlendorf, Siegfried Wahl, Daniel I Flitcroft   +5 more
doaj   +1 more source

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

Healthline, 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, Snigdha Sen, Preeti Gupta, Renu Agrawal, Niranjan Singh   +4 more
doaj   +1 more source

Association between Refractive Error and Decreasing Visus in Pregnant Women [PDF]

, 2018
Background: Refractive error is a problem with focusing light accurately onto the retina due to the shape of the eye. The most common types of refractive error are near-sightedness, far-sightedness, astigmatism, and presbyopia.
Adespin, D. . (Dea), Hariyana, B. (Bambang ), Himawan, A. B. (Ari ), Julianti, H. P. (Hari ), Nugroho, T. (Trilaksana )   +4 more
core   +1 more source

Changes in forward light scatter parameters as a function of refractive error in young adults [PDF]

, 2020
Background/aims Some aspects of visual performance worsen with increasing myopia. Whilst the underlying causes are not always clear, reduction in retinal image quality is often attributed to structural changes in the posterior myopic eye.
Barbur, J., Nagra, M., Patel, M.
core   +2 more sources