Results 41 to 50 of about 19,525 (203)

Effects of visual blur on microsaccades during visual exploration

Journal of Eye Movement Research, 2019
Microsaccades shift the image on the fovea and counteract visual fading. They also serve as an optimal sampling strategy while viewing complex visual scenes. Microsaccade production relies on the amount of retinal error or acuity demand of a visual task.
Sherry Tang, Peggy Skelly, Jorge Otero-Millan, Jonathan Jacobs, Jordan Murray, Aasef G. Shaikh, Fatema F. Ghasia   +6 more
doaj   +1 more source

Uncorrected refractive errors, presbyopia and spectacle coverage in Kamuli District, Uganda

African Vision and Eye Health, 2016
Background: Successful refractive error programmes arise from evidence that can be collected cost effectively and timely. Aim: To investigate the prevalence of uncorrected refractive error (URE), presbyopia and spectacle coverage in the Kamuli district,
Naomi Nsubuga, Prasidh Ramson, Pirindha Govender, VingFai Chan, Mary Wepo, Kovin S. Naidoo   +5 more
doaj   +1 more source

Treatment coverage rates for refractive error in the National Eye Health survey. [PDF]

PLoS ONE, 2017
To present treatment coverage rates and risk factors associated with uncorrected refractive error in Australia.Thirty population clusters were randomly selected from all geographic remoteness strata in Australia to provide samples of 1738 Indigenous ...
Joshua Foreman, Jing Xie, Stuart Keel, Hugh R Taylor, Mohamed Dirani   +4 more
doaj   +1 more source

Global cost of correcting vision impairment from uncorrected refractive error

Bulletin of the World Health Organization, 2012
OBJECTIVE: To estimate the global cost of establishing and operating the educational and refractive care facilities required to provide care to all individuals who currently have vision impairment resulting from uncorrected refractive error (URE ...
TR Fricke, BA Holden, DA Wilson, G Schlenther, KS Naidoo, S Resnikoff, KD Frick   +6 more
doaj   +1 more source

Global uncorrected refractive error and presbyopia: the size of the problem. [PDF]

Community Eye Health
Bastawrous A, Kassalow J, Watts E.
europepmc   +2 more sources

Visual impairment and refractive error in school children in Bhutan: The findings from the Bhutan School Sight Survey (BSSS 2019).

PLoS ONE, 2020
PurposeTo estimate the nationwide prevalence of visual impairment and associated refractive error in school children in Bhutan.MethodsThe sample of this prospective cross-sectional national survey comprised of randomly selected classes in levels IV-IX ...
Indra Prasad Sharma, Nor Tshering Lepcha, Tshering Lhamo, Leon B Ellwein, Gopal Prasad Pokharel, Taraprasad Das, Yuddha Dhoj Sapkota, Tandin Dorji, Sonam Peldon   +8 more
doaj   +2 more sources

Association between Refractive Error Types and Asthenopia in Primary School Students

Majalah Kedokteran Bandung, 2021
Refractive error is a condition in which the cornea and lens fail to focus the light, resulting in reduced visual efficiency. Twelve million children are experiencing refractive errors worldwide and uncorrected refractive errors in children have been ...
Vanessa Kuswanto, Felicia Kurniawan, Angela Shinta Dewi Amita   +2 more
doaj   +1 more source

Screening for Uncorrected Refractive Error Among Primary School Children In South-South Nigeria [PDF]

, 2013
A study on screening for uncorrected refractive error in primary school children has not been done in Bayelsa State, South-South Nigeria. This study aims to screen for uncorrected refractive error among primary school children in Bayelsa State and use ...
Opubiri, I, Pedro-Egbe, CN
core   +2 more sources

Global causes of blindness and distance vision impairment 1990–2020: a systematic review and meta-analysis [PDF]

, 2017
Background: Contemporary data on causes of vision impairment and blindness form an important basis for recommendations in public health policies. Refreshment of the Global Vision Database with recently published data sources permitted modeling of cause ...
Aditi Das, Aditi Das, MD, Alain Bron, Alan Morse, Alan Robin, Alex Silvester, Alex Silvester, MD, Anu Mathew, April Ingram, Aries Arditi, Banu Bozkurt, Beatriz Munoz, Billy Hammond, Charlotte Joslin, Dana Reza, David Friedman, David Musch, Donald Budenz, Dwight Stambolian, Feng Cai, Fernando Yaacov Pena, Flavio Hirai, George Lambrou, Gianni Virgili, Gretchen A Stevens, D.Sc, Gretchen Stevens, Gus Gazzard, Hans LIMBURG, Hans Limburg, PhD, Harry Quigley, Hua Gao, Hugh R Taylor, MD, Hugh Taylor, Iva Dekaris, Jaewan Choi, Jaime Tejedor, James Hejtmancik, James Tielsch, Jan van Meurs, Janet Leasher, Janet Serle, Jennifer Lim, Jenny deva, Jill Keeffe, Jinan Saaddine, Joao Furtado, John H Kempen, MD, John Huang, John Kempen, Jonathan Javitt, Jost Jonas, Juan Carlos Silva, Judy Kim, Kaweh Mansouri, Kevin Frick, Konrad Pesudovs, Kovin Naidoo, Kovin Naidoo, PhD, Lalit Dandona, Laura Dreer, Leon Ellwein, Luca Rossetti, Marcela Frazier, Maria Palaiou, Maria V Cicinelli, MD, Maria Vittoria Cicinelli, Mary Elizabeth Hartnett, Maurizio Battaglia Parodi, Miltiadis Tsilimbaris, Minguang He, Moncef Khairallah, Monte Del Monte, Murugesan Raju, Mya Sandar, Nathan Congdon, Nina Tahhan, PhD, Ning-Li Wang, Pamela Sieving, Paolo Lanzetta, Peter Ackland, Peter Ackland, MPhil, Peter Wiedemann, Pradeep Ramulu, Prof Janet Leasher, OD, Prof Jill Keeffe, PhD, Prof Jost B Jonas, MD, Prof Konrad Pesudovs, PhD, Prof Rupert R A Bourne, MD, Prof Serge Resnikoff, MD, Prof Tien Y Wong, PhD, Rajesh Shetty, Rakhi Dandona, Reza Dana, Richard Wormald, Rita S. Sitorus, Robert Casson, Rohit Khanna, Rohit Varma, Ronnie George, Rupert Bourne, Serge Resnikoff, Seth R Flaxman, PhD, Sheila West, Stephen Gichuhi, Tasanee Braithwaite, Tasanee Braithwaite, MPH, Tien Wong, Tueng Shen, Tunde Peto, Usha Chakravarthy, Van Charles Lansingh, Victor Gonzalez, Vinay Nangia, Ya Xing Wang, Yaniv Barkana, Yingfeng Zheng, Zane Rankin   +116 more
core   +6 more sources

Refractive error in school children in Agona Swedru, Ghana

African Vision and Eye Health, 2010
Uncorrected refractive errors remains a public health problem among different population groups. Among schoolchildren, uncorrected refractive errors have a considerable impact on learning andacademic achievement especially in underserved and under ...
G. O. Ovenseri-Ogbomo, R. Assien
doaj   +1 more source