Comparison of corneal irregular astigmatism by the type of corneal regular astigmatism
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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Prevalence of and factors associated with astigmatism in preschool children in Wuxi City, China
BMC Ophthalmology, 2022 Purpose To investigate the status of astigmatism in preschool children in Wuxi City, and explore the risk factors related to astigmatism. The risk factors related to astigmatism development as predictors can help us identify preschool children who need ...
Zhihui Yang +6 more
doaj +2 more sources
BMC 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
Scientific 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
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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
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Evaluating the predictive relationship between manifest refractive astigmatism, topographic astigmatism, and ocular residual astigmatism: A comparative study [PDF]
Journal of International Medical ResearchBackground The interaction between manifest refractive astigmatism and topographic astigmatism is critical in planning refractive surgery. This study aimed to investigate the predictive relationship between manifest refractive astigmatism and topographic
Wissam Yosif +3 more
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Adaptive metalenses with simultaneous electrical control of focal length, astigmatism, and shift
Science Advances, 2018 Artificial muscle corrects metalens aberrations on the fly. Focal adjustment and zooming are universal features of cameras and advanced optical systems.
Alan She, Shuyan Zhang, Samuel Shian
exaly +2 more sources
The Incidence of Posterior Ocular Astigmatism in a Refractive Surgery Population as Determined by the Direct Reduction of Topography Measured Astigmatism [PDF]
Clinical OphthalmologyManoj Motwani, Lourdes Haydaw Cornea Revolution/Motwani, LASIK Institute, San Diego, CA, 92121, USACorrespondence: Manoj Motwani, Cornea Revolution/Motwani, LASIK Institute, 9710 Scranton Road, Ste 170, San Diego, CA, 92121, USA, Tel +1 858 554-0008 ...
Motwani M, Haydaw L
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Clinical 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
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Epidemiology and Burden of Astigmatism: A Systematic Literature Review
Optometry 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