Results 11 to 20 of about 88,327 (313)

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   +2 more sources

Comparison of corneal irregular astigmatism by the type of corneal regular astigmatism

open access: yesScientific 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
doaj   +2 more sources

Comparison of penetrating femtosecond laser-assisted astigmatic keratotomy and toric intraocular lens implantation for correction of astigmatism in cataract surgery

open access: yesScientific Reports, 2021
This study tried to compare the clinical outcomes of femtosecond laser-assisted astigmatic keratotomy (FSAK) and toric intraocular lens (IOL) implantation for astigmatism correction and identify factors affecting the efficacy of FSAK and toric IOL ...
Hoon Noh   +4 more
doaj   +2 more sources

The contribution of ocular residual astigmatism to anterior corneal astigmatism in refractive astigmatism eyes [PDF]

open access: yesScientific Reports, 2021
AbstractTo determine the distribution of ocular residual astigmatism (ORA) in astigmatic eyes and the influence on the anterior corneal (ACA) and refractive astigmatism (RA). A total of 165 children met the inclusion criteria. Right eyes’ data were analyzed. Using Thibos vector analysis to calculate ORA. Spearman correlation analysis was used to obtain
Jian Lin
openaire   +5 more sources

Global prevalence and economic and humanistic burden of astigmatism in cataract patients: a systematic literature review

open access: yesClinical Ophthalmology, 2018
David F Anderson,1 Mukesh Dhariwal,2 Christine Bouchet,3 Michael S Keith3 1University Hospital Southampton, NHS Foundation Trust, Southampton, UK; 2Novartis Ireland Ltd., Dublin, Ireland; 3Alcon Laboratories Inc., Fort Worth, TX, USA Purpose: To ...
Anderson DF   +3 more
doaj   +2 more sources

Epidemiology and Burden of Astigmatism: A Systematic Literature Review

open access: yesOptometry and Vision Science, 2023
SIGNIFICANCE This is the first literature review to report the epidemiology, patient burden, and economic burden of astigmatism in the general adult population. The unmet needs of astigmatism patients with coexisting ocular conditions (cataract, glaucoma,
Jun Zhang   +5 more
semanticscholar   +1 more source

Functional Optical Zone and Visual Quality After Small-Incision Lenticule Extraction for High Myopic Astigmatism

open access: yesOphthalmology and Therapy, 2021
The aim of this study was to compare the functional optical zone (FOZ) after correction of high myopic astigmatism and low myopic astigmatism by small-incision lenticule extraction (SMILE).
Xuan Ding   +4 more
semanticscholar   +1 more source

Factors associated with corneal astigmatism change after ptosis surgery [PDF]

open access: yesInternational 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

Type of residual astigmatism and uncorrected visual acuity in pseudophakic eyes

open access: yesScientific Reports, 2022
It is difficult to assess the pure impact of the type of residual astigmatism (with-the-rule; WTR, against-the-rule; ATR, and oblique astigmatism) on uncorrected distance visual acuity (UDVA) in pseudophakic eyes due to different age distribution of ...
Yumi Hasegawa   +3 more
doaj   +1 more source

Ocular Refraction at Birth and Its Development During the First Year of Life in a Large Cohort of Babies in a Single Center in Northern Italy [PDF]

open access: yes, 2020
The purpose of this study was to investigate refraction at birth and during the first year of life in a large cohort of babies born in a single center in Northern Italy.
Bartollino S.   +7 more
core   +1 more source

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