Results 11 to 20 of about 8,845 (181)

Vision screening in children:a retrospective study of social and demographic factors with regard to visual outcomes [PDF]

open access: yes, 2015
BACKGROUND: Amblyopia and its risk factors have been demonstrated to be more common among children from low socioeconomic backgrounds. We sought to investigate this association in a region with orthoptic-delivered screening and whole population coverage,
C Gilmour   +18 more
core   +3 more sources

A retinoscopic survey of 333 horses and ponies in the UK [PDF]

open access: yes, 2014
Introduction: Ophthalmic examination in the horse is generally limited to crude assessment of vision and screening for ocular lesions. The refractive state of equine eyes and the potential impact on vision and performance requires further ...
Chung   +38 more
core   +1 more source

Independent and reciprocal accommodation in anisometropic amblyopia [PDF]

open access: yes, 2010
Accommodation is considered to be a symmetrical response and to be driven by the least ametropic and nonamblyopic eye in anisometropia. We report the case of a 4-year-old child with anisometropic amblyopia who accommodates asymmetrically, reliably ...
Anna M. Horwood   +6 more
core   +1 more source

Refractive error study in young subjects: results from a rural area in Paraguay [PDF]

open access: yes, 2017
AIM: To evaluate the distribution of refractive error in young subjects in a rural area of Paraguay in the context of an international cooperation campaign for the prevention of blindness.
Estrella Lumeras, Miguel Ángel   +4 more
core   +5 more sources

Cycloplegic Effects on the Cylindrical Components of the Refraction [PDF]

open access: yesJournal of Ophthalmology, 2021
It is important to predict which astigmatic patients require separate refraction for near vision. This study compared cylindrical components changes by cyclopentolate 1% for the low and high amount of astigmatism. The right eyes of 1014 healthy individuals (307 males and 707 females) with cylindrical refractive power more than −0.5 diopter on ...
Athar Zareei   +2 more
openaire   +3 more sources

Myopes have significantly higher serum melatonin concentrations than non-myopes [PDF]

open access: yes, 2017
Purpose Experimental animal models of myopia demonstrate that higher melatonin (Mel) and lower dopamine (DA) concentrations actively promote axial elongation.
Ackermann   +70 more
core   +2 more sources

Influence of fogging lenses and cycloplegia on open-field automatic refraction [PDF]

open access: yes, 2008
Purpose: To compare refractive values measured without cycloplegia, cycloplegia and fogging lenses using an open-field auto-refractor. Methods: One hundred and forty-two young adults were enrolled from a university population; 96 were female (67.6 ...
Benjamin W. J.   +8 more
core   +1 more source

Receding and disparity cues aid relaxation of accommodation [PDF]

open access: yes, 2009
Purpose. Accommodation can mask hyperopia and reduce the accuracy of non-cycloplegic refraction. It is, therefore, important to minimize accommodation to obtain a measure of hyperopia as accurate as possible.
Horwood, A. M., Riddell, P. M.
core   +1 more source

Chinese eye exercises and myopia development in school age children: a nested case-control study [PDF]

open access: yes, 2016
Chinese eye exercises have been implemented in China as an intervention for controlling children’s myopia for over 50 years. This nested case-control study investigated Chinese eye exercises and their association with myopia development in junior middle ...
Kang, Meng-Tian   +10 more
core   +1 more source

Strategies to regulate myopia progression with contact lenses: a review [PDF]

open access: yes, 2016
Purpose: Higher myopic refractive errors are associated with serious ocular complications that can put visual function at risk. There is respective interest in slowing and if possible stopping myopia progression before it reaches a level associated ...
Ferreira, Daniela Patrícia Lopes   +6 more
core   +1 more source

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