Results 41 to 50 of about 13,852 (253)

Impact of astigmatism and high-order aberrations on subjective best focus [PDF]

open access: yes, 2015
12 págs.; 9 figs.; 1 tab.© 2015 ARVO. We studied the role of native astigmatism and ocular aberrations on best-focus setting and its shift upon induction of astigmatism in 42 subjects (emmetropes, myopes, hyperopes, with-the-rule [WTR] and against-the ...
Dorronsoro, Carlos   +5 more
core   +1 more source

Peripheral refraction of myopic eyes with spectacle lenses correction and lens free emmetropes during accommodation

open access: yesEye and Vision, 2021
Purpose To measure axial and off-axis refraction patterns in myopic eyes with spectacle lenses correction and lens free emmetropes in young healthy subjects at different target distances from 2.00 m (0.50 D) to 0.20 m (5.00 D) in terms of sphere ...
António Queirós   +2 more
doaj   +1 more source

Longitudinal Development of Refractive Error in Children With Accommodative Esotropia: Onset, Amblyopia, and Anisometropia. [PDF]

open access: yes, 2016
Purpose: We investigated longitudinal changes of refractive error in children with accommodative esotropia (ET) throughout the first 12 years of life, its dependence on age at onset of ET, and whether amblyopia or anisometropia are associated with ...
Birch, Eileen E.   +3 more
core   +1 more source

Astigmatism in school students of eastern China: prevalence, type, severity and associated risk factors

open access: yesBMC Ophthalmology, 2020
Background China has been undergoing dramatic economic development, accompanied by increased education load on the young children. This study is to investigate the prevalence, type, severity, and associated risk factors of astigmatism in school students ...
Jianyong Wang   +7 more
doaj   +1 more source

Refractive error changes in cortical, nuclear, and posterior subcapsular cataracts [PDF]

open access: yes, 2003
AIMS: To determine the effect of the three main morphological types of cataract on refractive error. METHODS: Data were prospectively collected from 77 subjects (age 67 (SD 8) years) with one morphological type of cataract.
Elliott, David B, Pesudovs, Konrad
core   +1 more source

Contributions of Anterior Corneal and Ocular Residual Astigmatism to Autorefraction Astigmatism in a Myopic Adult Sample

open access: yesClinical Ophthalmology, 2020
Amr A Gab-Alla Ophthalmology Department, Faculty of Medicine, Suez Canal University, Ismailia, EgyptCorrespondence: Amr A Gab-AllaOphthalmology Department, Faculty of Medicine, Suez Canal University, Ring Road, Ismailia, EgyptTel +20 1222836261Email ...
Gab-Alla AA
doaj  

Decentration following femtosecond laser small incision lenticule extraction (SMILE) in eyes with high astigmatism and its impact on visual quality

open access: yesBMC Ophthalmology, 2019
Background To measure the decentration following SMILE in eyes with high myopic astigmatism and investigate its impact on visual quality. Methods The prospective study was conducted to analyze patients who underwent SMILE for correction of myopia and ...
Jia Huang, Xingtao Zhou, Yishan Qian
doaj   +1 more source

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