Results 21 to 30 of about 197,605 (292)

Uncorrected refractive errors

Indian 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 S Naidoo, Jyoti Jaggernath
openaire   +3 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 ERRORS

The Professional Medical Journal, 2011
Objective: To know the profile of refractive errors in school age children in DHQ Hospital Karak and group of teaching Hospitals Bannu. Setting: DHQ Hospital Karak and group of Teaching hospitals Bannu. Period: Two years study from August 2007 to August 2009. Design: Descriptive study. Materials & Methods: A work up proforma was prepared for record
MOHAMMAD ALAM, MOHAMMAD FAREED
openaire   +2 more sources

Refractive error is associated with intracranial volume [PDF]

, 2018
Myopia is part of the spectrum of refractive error. Myopia is associated with psychometric intelligence and, the link between brain anatomy and myopia has been hypothesized.
Araki, T, Hanawa, S, Iizuka, K, Ikeda, S, Kawashima, R, Kotozaki, Y, Magistro, D, Miyauchi, CM, Nakagawa, S, Nouchi, R, Nozawa, T, Sakaki, K, Sassa, Y, Sekiguchi, A, Shinada, T, Takeuchi, H, Taki, Y, Yamamoto, Y, Yokota, S, Yokoyama, R   +19 more
core   +3 more sources

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

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

Prevalence of Refractive Error and Strabismus in Primary School Children of Tehsil Lakki Marwat, Khyber Pakhtunkhwa Pakistan

Journal of Gandhara Medical and Dental Sciences, 2020
OBJECTIVES: Refractive errors and strabismus continue to remain a significant public health problem. Among school children it has an impact on child development.
Faheem Ullah, Naheed Mahsood, Waqas Mohyuddin, Saadullah Afridi, Zia ur Rehman   +4 more
doaj   +1 more source

Prevalence and distribution of uncorrected refractive error among school children in the Bongo District of Ghana

Cogent Medicine, 2021
To estimate the prevalence and distribution of uncorrected refractive error among school children in the Bongo District of Ghana. A descriptive cross-sectional study was conducted among 12–15-year-old children in eighteen public junior high schools in ...
Frederick A Asare, Priya Morjaria
doaj   +1 more source

Refractive error sensing from wavefront slopes [PDF]

, 1998
15 páginas, 8 figuras, 2 tablas.The problem of measuring the objective refractive error with an aberrometer has shown to be more elusive than expected.
Jaeschke, C., Niethard, Fritz Uwe, Weber, M., Wirtz, D.   +3 more
core   +1 more source

Analytic evaluation of diffuse fluence error in multi-layer scattering media with discontinuous refractive index

, 2012
A simple analytic method of estimating the error involved in using an approximate boundary condition for diffuse radiation in two adjoining scattering media with differing refractive index is presented.
Adrian C. Selden, Liemert
core   +1 more source