Results 11 to 20 of about 4,816 (194)

LASIK for spherical refractive myopia: effect of topographic astigmatism (ocular residual astigmatism, ORA) on refractive outcome. [PDF]

PLoS ONE, 2015
In eyes with a preoperative plano refractive cylinder, it would appear that there is no rationale for astigmatic treatment. The aim of this retrospective, cross-sectional data analysis was to determine the amount of topographic astigmatism in refractive ...
Andreas Frings, Gisbert Richard, Johannes Steinberg, Christos Skevas, Vasyl Druchkiv, Toam Katz, Stephan J Linke   +6 more
doaj   +7 more sources

Quantifying posterior corneal astigmatism’s contribution to ocular residual astigmatism: implications for personalized refractive surgery [PDF]

International Ophthalmology
To determine the main sources of ocular residual astigmatism (ORA) and to quantify the contribution of posterior corneal astigmatism (PCA) to ORA.This cross-sectional study was conducted on 177 right eyes of 177 patients. Anterior corneal astigmatism (ACA) and PCA were obtained from Pentacam.
Yan Dongmei, Dexiang An, Yan Dongmei
exaly   +4 more sources

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

Scientific Reports, 2021
Jian Lin
doaj   +4 more sources

Significant ocular residual astigmatism reduces the effect of orthokeratology lenses in controlling myopia [PDF]

Scientific Reports
To investigate the influence of ocular residual astigmatism (ORA) on the therapeutic outcomes of orthokeratology lenses in pediatric myopia management. In this retrospective cohort study, 60 myopic children aged 7–12 years were classified into high-ORA (≥
Jian Lin, Dexiang An, Yun Lu, Dongmei Yan   +3 more
doaj   +4 more sources

Compensatory efficacy and bilateral symmetry of ocular residual astigmatism in myopic astigmatism adults

Photodiagnosis and Photodynamic Therapy
Objective: To investigate the characteristics of distribution patterns, compensatory efficacy, and bilateral symmetry of ocular residual astigmatism (ORA) across varying degrees of myopia.
Weixin Huang, Mengxia Yuan, Youming Zhou, Yi Zhang, Dongling Gu, Jinyu Li, Ruifeng Ji, Vishal Jhanji, Riping Zhang   +8 more
doaj   +5 more sources

Exploring the Impact of Refractive and Ocular Residual Astigmatism on Stereopsis After Photorefractive Keratectomy in Patients With Myopic Astigmatism [PDF]

Journal of Ophthalmology
Background To investigate the impact of refractive and ocular residual astigmatism (ORA) on stereopsis after photorefractive keratectomy (PRK) for the correction of myopic astigmatism. Methods This prospective observational study was ...
Faezeh Fayaz, Mohsen Pourazizi, Payam Nabovati, Alireza Peyman, Pegah Noorshargh   +4 more
doaj   +4 more sources

Corneal and Ocular Residual Astigmatism in School-Age Children. [PDF]

J Curr Ophthalmol, 2020
Purpose: To determine the distribution of residual and corneal astigmatism (CA) in children aged 6–18 years and their relationship with age, sex, spherical equivalent, and biometric parameters. Methods: In this cross-sectional study, multi-stage stratified cluster sampling was done ...
Heydarian S, Sardari S, Heidari Z, Yekta AA, Ostadimoghaddam H, Khabazkhoob M.   +5 more
europepmc   +3 more sources

Ocular residual astigmatism’s effect on high myopic astigmatism LASIK surgery [PDF]

Eye, 2014
To analyze the effect of ocular residual astigmatism (ORA) on the effectiveness of LASIK for treating high myopic astigmatism.This is an observational, cross-sectional study. We studied 116 consecutive myopic eyes with -3 diopters (D) or more of astigmatism that underwent LASIK surgery.
M A, Teus, C, Arruabarrena, J L, Hernández-Verdejo, R, Cañones, D G, Mikropoulos   +4 more
openaire   +4 more sources

Correlation of higher order aberrations and components of astigmatism in myopic refractive surgery candidates [PDF]

Journal of Current Ophthalmology, 2016
Purpose: To evaluate the correlation between refractive, corneal, and residual astigmatism and higher order aberrations (HOA) in refractive surgery candidates.
Mehrdad Mohammadpour, Zahra Heidari, Hossein Mohammad-Rabei, Ebrahim Jafarzadehpur, Mahmoud Jabbarvand, Hassan Hashemi, Mehdi Khabazkhoob   +6 more
doaj   +2 more sources

Effect of Postoperative Ocular Residual Astigmatism (ORA) on Treatment Outcome After Myopic Laser in situ Keratomileusis (LASIK) [PDF]

Clinical Ophthalmology, 2022
Johanna Nöthel,1,* Toam Katz,1,* Vasyl Druchkiv,2 Andreas Frings3 1Department of Ophthalmology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany; 2Department of Research & Development, Clínica Baviera, Valencia, Spain; 3Department of
Nöthel J, Katz T, Druchkiv V, Frings A
doaj   +2 more sources