Results 1 to 10 of about 202,416 (340)

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   +2 more sources

Surgical Options for the Refractive Correction of Keratoconus: Myth or Reality [PDF]

Journal of Ophthalmology, 2017
Keratoconus provides a decrease of quality of life to the patients who suffer from it. The treatment used as well as the method to correct the refractive error of these patients may influence on the impact of the disease on their quality of life.
L. Fernández-Vega-Cueto, V. Romano, R. Zaldivar, C. H. Gordillo, F. Aiello, D. Madrid-Costa, J. F. Alfonso   +6 more
doaj   +6 more sources

Refractive error blindness

Bulletin 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

Refractive errors [PDF]

Deutsches Ärzteblatt international, 2016
All over the world, refractive errors are among the most frequently occuring treatable distur - bances of visual function. Ametropias have a prevalence of nearly 70% among adults in Germany and are thus of great epidemiologic and socio-economic relevance.In the light of their own clinical experience, the authors review pertinent articles retrieved by a
Ulrich, Schiefer, Christina, Kraus, Peter, Baumbach, Judith, Ungewiß, Ralf, Michels   +4 more
openaire   +3 more sources

Improving Access to Refractive Services in Adults: A Health Examination Center-Based Model

Frontiers in Medicine, 2021
Purpose: To assess the potential of a health examination center-based screening model in improving service for uncorrected refractive error.Methods: Individuals aged ≥18 years undergoing the routine physical examinations at a tertiary hospital in the ...
Haishuang Lin, Haishuang Lin, Haishuang Lin, Jing Sun, Nathan Congdon, Nathan Congdon, Meiping Xu, Shanshan Liu, Yuanbo Liang, Yuanbo Liang, Yuanbo Liang, Hailin Wang, Shaodan Zhang, Shaodan Zhang, Shaodan Zhang, Shaodan Zhang   +15 more
doaj   +1 more source

Agreement Between Swept-source Optical Coherence Tomography and Rotating Scheimpflug Camera in Measurement of Corneal Parameters in Normal and Keratoconic Eyes

Journal of Ophthalmic & Vision Research, 2023
Purpose: This study aimed to assess the agreement between topographic indices of healthy subjects and keratoconus (KCN) patients using a swept-source optical coherence tomography (SS-OCT CASIA2) versus a Scheimpflug camera (Pentacam). Methods: 40 eyes of
Hamed Ghassemi, Mehran Zarei-Ghanavati, Mina Khastavan, Mehrnaz Atighehchian, Abbas Azimi Khorasani, Golshan Latifi   +5 more
doaj   +1 more source

Refractive Error among Children Visiting the Department of Paediatric Opthalmology of a Tertiary Eye Care Center

Journal of Nepal Medical Association, 2023
Introduction: Refractive error is the inability of eyes to focus clearly on images. Visual impairment due to refractive error has a major impact on children's education and daily activities.
Govind Gurung, Krishna Kant Gupta
doaj   +1 more source

Distribution of refractive error among chinese primary school children in a rural area in Pahang, Malaysia [PDF]

Malaysian Family Physician, 2022
Purpose: This study aimed to determine the prevalence and status of refractive error among Chinese primary school children in a rural area in Pahang. Methods: This investigation entailed a cross-sectional retrospective study design involving case file ...
Rokiah Omar, May Ek Su Wong, Chiranjib Majumder, Victor Feizal Knight   +3 more
doaj   +1 more source

Meta-analysis of 542,934 subjects of European ancestry identifies new genes and mechanisms predisposing to refractive error and myopia

Nature Genetics, 2020
Pirro G Hysi, Hélène Choquet, Anthony P Khawaja   +2 more
exaly   +3 more sources

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