Results 331 to 340 of about 3,196,627 (365)

Refractive errors in children with autism in a developing country.

Nigerian Journal of Clinical Practice, 2014
BACKGROUND In a resource-limited country visual problems of mentally challenged individuals are often neglected. AIM The present study aims to study refractive errors in children diagnosed with autism in a developing country.
I. Ezegwui, L. Lawrence, A. Aghaji, O. Okoye, O. Okoye, E. Onwasigwe, P. Ebigbo   +6 more
semanticscholar   +1 more source

Headache and refractive errors in children.

Journal of pediatric ophthalmology and strabismus, 2014
PURPOSE To investigate the association between uncorrected or miscorrected refractive errors in children and headache, and to determine whether correction of refractive errors contributes to headache resolution.
Z. Roth, K. R. Pandolfo, J. Simon, J. Zobal-Ratner   +3 more
semanticscholar   +1 more source

Refractive Errors in Twin Studies

Twin Research and Human Genetics, 2006
AbstractIt is estimated that 1.6 billion people worldwide have myopia, a refractive error, and this number is expected to increase to approximately 2.5 billion by the year 2020. It is now well established that both the environment and genetics play a role in the development of myopia.
Robyn H. Guymer, Paul N. Baird, Matthew Chamberlain, Christine Y. Chen, Pam Garoufalis, Mohamed Dirani   +5 more
openaire   +2 more sources

Prevalence of refractive errors in a multiethnic Asian population: the Singapore epidemiology of eye disease study.

Investigative Ophthalmology and Visual Science, 2013
PURPOSE To determine the prevalence of refractive errors in a multiethnic Asian population aged over 40 years and to examine secular trends and racial differences.
C. Pan, Yingfeng Zheng, A. Anuar, Merwyn Chew, G. Gazzard, T. Aung, Ching-Yu Cheng, T. Wong, S. Saw   +8 more
semanticscholar   +1 more source

REFRACTIVE ERRORS

1987
Publisher Summary A common cause of blurred vision is refractive error. This is a physiological condition where the refracting system of the eye fails to focus objects sharply on the retina. It is usually corrected with glasses. Myopia is an optical condition where distant objects are focused in front of the retina so that vision for distance is ...
ARTHUR LIM SIEW MING, IAN J CONSTABLE
openaire   +2 more sources

The prevalence of refractive errors in the Middle East: a systematic review and meta-analysis

International ophtalmology, 2020
Fahimeh Khoshhal, H. Hashemi, E. Hooshmand, M. Saatchi, A. Yekta, M. Aghamirsalim, H. Ostadimoghaddam, M. Khabazkhoob   +7 more
semanticscholar   +1 more source

Refractive errors and refractive development in premature infants

Journal Français d'Ophtalmologie, 2015
To examine refractive errors and refractive development in premature infants.Premature infants in the retinopathy of prematurity (ROP) screening program were recruited and examined longitudinally between 28 and 58 weeks postmenstrual age. For performing cycloplegic retinoscopy, 1% tropicamide was administered, two drops with a 10-minute interval, in ...
Z. Ozen Tunay, Ozdemir Ozdemir, Uğur Acar, D. Erginturk Acar   +3 more
openaire   +3 more sources

Refractive Errors

Tropical Doctor, 2003
Susanne, Wedner, Brendan, Dineen
openaire   +5 more sources

MECHANISMS OF ACCOMMODATION AND REFRACTIVE ERROR*

Ophthalmic and Physiological Optics, 1983
Abstract The classical or Helmholtz theory of accommodation has formed the basis of optometric practice for many years. This theory maintains that the ciliary muscle receives only parasympathetic innervation and that the position of rest in the emmetropic eye lies at optical infinity.
openaire   +3 more sources

Refractive Errors in Infants

Journal of Pediatric Ophthalmology & Strabismus, 2005
Harold P. Koller, Martin E. Lederman, Al Smith, Leonard B. Nelson   +3 more
openaire   +3 more sources