Results 1 to 10 of about 17,235 (144)
Comparison of corneal irregular astigmatism by the type of corneal regular astigmatism [PDF]
Scientific Reports, 2021 We investigated the relation between corneal regular and irregular astigmatism in normal human eyes. In 951 eyes of 951 patients, corneal irregular astigmatism, such as asymmetry and higher-order irregularity components, was calculated using the Fourier ...
Yuta Ueno +5 more
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Symmetrical femtosecond laser arc incision in correcting corneal astigmatism in cataract patients [PDF]
International Journal of Ophthalmology, 2023 AIM: To evaluate the effect of symmetrical arc incision correcting corneal astigmatism in femtosecond laser-assisted phacoemulsification (FLACS). METHODS: This study enrolled patients with cataract combined with regular corneal astigmatism of >0.75 D ...
Zun-Xia Hu +10 more
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Distribution of posterior corneal astigmatism according to axis orientation of anterior corneal astigmatism. [PDF]
PLoS ONE, 2015 To investigate the distribution of posterior corneal astigmatism in eyes with with-the-rule (WTR) and against-the-rule (ATR) anterior corneal astigmatism.We retrospectively examined six hundred eight eyes of 608 healthy subjects (275 men and 333 women ...
Toshiyuki Miyake +2 more
doaj +4 more sources
Surgical approaches to correct corneal astigmatism at time of cataract surgery: a mini-review [PDF]
International Journal of OphthalmologyAmong refractive errors, astigmatism is the most common optical aberration, where refraction changes in different meridians of the eye. It causes blurred vision at any distance and includes corneal, lenticular, and retinal astigmatism.
Xiao-Lei Yin +4 more
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Association of PDGFRA polymorphisms with the risk of corneal astigmatism in a Japanese population [PDF]
Scientific Reports, 2023 Corneal astigmatism is reportedly associated with polymorphisms of the platelet-derived growth factor receptor alpha (PDGFRA) gene region in Asian populations of Chinese, Malay, and Indian ancestry and populations of European ancestry.
Hideharu Fukasaku +5 more
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Studying the contribution of posterior corneal astigmatism to total corneal astigmatism
Journal of the Egyptian Ophthalmological Society, 2015 Settings The Faculty of Medicine, Alexandria University, Egypt. Purpose The aim of this work was to study the contribution of posterior corneal astigmatism to total corneal astigmatism.
Hany Ahmed Helaly
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Diagnostics, 2023 Purpose: To analyse the correspondence between refractive astigmatism and corneal astigmatism in pseudophakic eyes with non-toric intraocular lenses. Setting: Yeouido St. Mary hospital, Seoul, Republic of Korea.
Kyung-Sun Na +3 more
doaj +1 more source
BMC Ophthalmology, 2022 Background To assess the correlation between ocular residual astigmatism and anterior corneal astigmatism in children with low and moderate myopia. Methods Refractive astigmatism was determined by subjective manifest refraction.
Jian Lin +3 more
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Age- and gender-related characteristics of astigmatism in a myopic population
Frontiers in Medicine, 2022 PurposeTo explore age- and gender-related differences of refractive and corneal astigmatism in myopic patients looking for refractive surgery.DesignA retrospective cross-sectional study.Materials and methodsThe medical files of candidates looking for ...
Shan Yang, Yang Jiang, Ge Cui, Ying Li
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Factors associated with corneal astigmatism change after ptosis surgery [PDF]
International Journal of Ophthalmology, 2022 AIM: To evaluate the predictive factors of postoperative corneal astigmatism change in ptosis patients who underwent ptosis surgical repair. METHODS: Patients who underwent levator resection at Oculoplastic service of the Department of Ophthalmology ...
Natpatsorn Mongkolareepong +2 more
doaj +1 more source