Results 21 to 30 of about 192,162 (261)

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

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

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

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

Associations with photoreceptor thickness measures in the UK Biobank. [PDF]

, 2019
Spectral-domain OCT (SD-OCT) provides high resolution images enabling identification of individual retinal layers. We included 32,923 participants aged 40-69 years old from UK Biobank.
Aslam, Tariq, Balaskas, Konstantinos, Barman, Sarah A, Barrett, Jenny H, Bishop, Paul, Blows, Peter, Bunce, Catey, Carare, Roxana O, Chakravarthy, Usha, Chan, Michelle, Chua, Sharon YL, Consortium, UK Biobank Eye Vision, Crabb, David P, Cumberland, Philippa M, Day, Alexander, Desai, Parul, Dhillon, Baljean, Dick, Andrew D, Egan, Cathy, Ennis, Sarah, Foster, Paul J, Fruttiger, Marcus, Gallacher, John EJ, Garway-Heath, David F, Gibson, Jane, Gore, Dan, Guggenheim, Jeremy A, Hammond, Chris J, Hardcastle, Alison, Harding, Simon P, Hogg, Ruth E, Hysi, Pirro, Keane, Pearse A, Khaw, Sir Peng T, Khawaja, Anthony P, Lascaratos, Gerassimos, Lotery, Andrew J, Macgillivray, Tom, Mackie, Sarah, Martin, Keith, Mcgaughey, Michelle, Mcguinness, Bernadette, Mckay, Gareth J, Mckibbin, Martin, Mitry, Danny, Moore, Tony, Morgan, James E, Muthy, Zaynah A, O'Sullivan, Eoin, Owen, Chris G, Patel, Praveen J, Paterson, Euan, Peto, Tunde, Petzold, Axel, Rahi, Jugnoo S, Reisman, Charles, Rudnicka, Alicja R, Self, Jay, Sivaprasad, Sobha, Steel, David, Stratton, Irene, Strouthidis, Nicholas, Sudlow, Cathie, Tapp, Robyn, Thaung, Caroline, Thomas, Dhanes, Trucco, Emanuele, Tufail, Adnan, Vernon, Stephen A, Viswanathan, Ananth C, Vitart, Veronique, Williams, Cathy, Williams, Katie, Woodside, Jayne V, Yang, Qi, Yates, Max M, Yip, Jennifer, Zheng, Yalin   +77 more
core   +10 more sources

Profile of refractive error in Ekiti, south western Nigeria

African Vision and Eye Health, 2018
Background: Refractive error is one of the eye disorders with the capability of causing visual impairment. We needed to know the various types and proportion of refractive errors seen in patients attending an eye clinic at the tertiary health centre ...
Iyiade A. Ajayi, Olusola J. Omotoye, Olubunmi Omotoso-Olagoke   +2 more
doaj   +1 more source

Refractive error and its associated factors among pregnant women attending antenatal care unit at the University of Gondar Comprehensive Specialized Hospital, Northwest Ethiopia.

PLoS ONE, 2021
BackgroundRefractive error is one of the commonly encountered problems during pregnancy and being the cause of deleterious effects on health. Despite its impacts, there is no evidence on the magnitude and associated factors of refractive error among ...
Mengistie Diress, Yigizie Yeshaw, Minychil Bantihun, Baye Dagnew, Adugnaw Ambelu, Mohammed Abdu Seid, Yonas Akalu   +6 more
doaj   +1 more source

Refractive error among school children in Jhapa, Nepal

Journal of Optometry, 2011
Purpose: To evaluate the pattern of refractive errors among school children in Jhapa, Nepal. Methods: A cross-sectional study was designed to evaluate refractive status of 2236 school children in three government schools and a private school.
Gauri Shankar Shrestha, Digen Sujakhu, Purushottam Joshi   +2 more
doaj   +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