Results 21 to 30 of about 5,158 (177)

Corneal biomechanical properties in myopic and emmetropic children.

European review for medical and pharmacological sciences, 2023
The purpose of this study was to investigate the relationship between corneal biomechanics and ocular morphology in myopic children and adolescents.The study included 170 right eyes, from 170 patients under the age of 18 years, who underwent a complete ophthalmologic examination, gathering the following data: spherical equivalent (SE) (under ...
Marinescu, M., Dascalescu, D., Constantin, M., Coviltir, V., Burcel, M., Darabus, D., Ciuluvica, R., Stanila, D., Voinea, L., Potop, V.   +9 more
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On the Relationship between Corneal Biomechanics, Macrostructure, and Optical Properties [PDF]

Journal of Imaging, 2021
Optical properties of the cornea are responsible for correct vision; the ultrastructure allows optical transparency, and the biomechanical properties govern the shape, elasticity, or stiffness of the cornea, affecting ocular integrity and intraocular pressure.
Francisco J. Ávila, Maria Concepción Marcellán, Laura Remón   +2 more
openaire   +5 more sources

Investigation of corneal biomechanical properties using the CORVIS ST device (Oculus, Germany) in patients with myopia and myopic astigmatism

Офтальмохирургия, 2021
Purpose. To evaluate the corneal biomechanical properties using the CORVIS ST device (Oculus, Germany) in patients with myopia and myopic astigmatism with intact cornea as well as in patients with myopia and myopic astigmatism who underwent excimer laser
V. D. Antonuk, T. S. Kuznetsova
doaj   +1 more source

Effect of Biomechanical Properties on Myopia: a Study of New Corneal Biomechanical Parameters [PDF]

BMC Ophthalmology, 2020
Abstract Background: To investigate corneal stress-strain index (SSI), a marker for material stiffness and corneal biomechanical parameters in myopic eyes.Methods: A total of 1056 myopic patients were included in this study. Corvis ST was used to measure SSI.
Fang Han, Mengdi Li, Pinghui Wei, Jiaonan Ma, Vishal Jhanji, Yan Wang   +5 more
openaire   +3 more sources

Corneal Biomechanical Properties in Aspirin Users

Ophthalmic Research, 2016
<b><i>Purpose:</i></b> To analyze corneal biomechanical properties in aspirin users using an ocular response analyzer. <b><i>Methods:</i></b> This study included 80 eyes of 40 aspirin users and 80 eyes of 40 individuals who did not use aspirin. Corneal hysteresis (CH), the corneal resistance factor (CRF),
Ali Riza Cenk, Celebi, Ayse Ebru, Kilavuzoglu, Ugur Emrah, Altiparmak, Cemile Banu, Cosar   +3 more
openaire   +2 more sources

A Review of Structural and Biomechanical Changes in the Cornea in Aging, Disease, and Photochemical Crosslinking

Frontiers in Bioengineering and Biotechnology, 2019
The study of corneal biomechanics is motivated by the tight relationship between biomechanical properties and visual function within the ocular system.
Brecken J. Blackburn, Brecken J. Blackburn, Brecken J. Blackburn, Brecken J. Blackburn, Michael W. Jenkins, Michael W. Jenkins, Andrew M. Rollins, William J. Dupps, William J. Dupps   +8 more
doaj   +1 more source

The Effect of Axial Length Elongation on Corneal Biomechanical Property [PDF]

Frontiers in Bioengineering and Biotechnology, 2021
Background: To investigate the correlation between the corneal biomechanical parameter stress-strain index (SSI) and axial length (AL) in moderately elongated eye (MEE) and severely elongated eye (SEE).Methods: This study included 117 eyes from 117 participants. Among them, 59 (50.4%) had MEE (AL&lt;26 mm) and 58 (49.6%) had SEE (AL≥26 mm).
Guihua Liu, Hua Rong, Ping Zhang, Yu Xue, Yu Xue, Bei Du, Biying Wang, Jiamei Hu, Zhi Chen, Zhi Chen, Ruihua Wei   +10 more
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Dynamic corneal deformation response and integrated corneal tomography

Indian Journal of Ophthalmology, 2018
Measuring corneal biomechanical properties is still challenging. There are several clinical applications for biomechanical measurements, including the detection of mild or early forms of ectatic corneal diseases.
Marcella Q Salomão, Ana Luisa Hofling-Lima, Fernando Faria-Correia, Bernardo Teixeira Lopes, Sandra Rodrigues-Barros, Cynthia J Roberts, Renato Ambrósio   +6 more
doaj   +1 more source

Corneal biomechanical properties in patients with Hashimoto’s thyroiditis [PDF]

Advances in Clinical and Experimental Medicine, 2018
Hashimoto's thyroiditis (HT) is an autoimmune endocrine disorder that results from a dysregulation of the immune system leading to an immune attack on the thyroid gland. It has potential effects on different organs and tissues.The aim of the study was to investigate the effect of HT on corneal biomechanical properties using the ocular response analyzer
Ahmet, Kırgız, Kübra Şerefoğlu, Çabuk, Mikail, Yetmis, Kürşat, Atalay   +3 more
openaire   +2 more sources

Time-varying regularity of changes in biomechanical properties of the corneas after removal of anterior corneal tissue

BioMedical Engineering OnLine, 2021
Background The corneal biomechanical properties with the prolongation of time after corneal refractive surgery are important for providing a mechanical basis for the occurrence of clinical phenomena such as iatrogenic keratectasia and refractive ...
Di Zhang, Xiao Qin, Haixia Zhang, Lin Li
doaj   +1 more source