Corneal Biomechanical Properties in Myopic Eyes Measured by a Dynamic Scheimpflug Analyzer
Joint Authors
Wang, Jingyi
Li, Ying
Jin, Yumei
Yang, Xue
Zhao, Chan
Long, Qin
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-20
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Purpose.
To evaluate the corneal biomechanical parameters in myopic and emmetropic eyes using Corneal Visualization Scheimpflug Technology (CorVis ST).
Methods.
103 myopic and emmetropic eyes of 103 patients were examined.
Corneal biomechanical parameters, axial length, and mean keratometry were measured using CorVis ST, IOL Master, and topography, respectively.
Corneal biomechanical properties were compared within four groups.
Bivariate correlation analysis was used to assess the relationship between corneal biomechanical parameters and ocular characteristics.
Results.
Four of ten corneal biomechanical parameters, namely, deformation amplitude (DA), first- and second-applanation time (A1-time, A2-time), and radius at highest concavity (HC radius), were significantly different within the four groups ( P < 0.05 ).
In correlation analysis, DA was positively correlated with axial length ( r = 0.20 , P = 0.04 ); A2-time was positively correlated with spherical equivalent (SE) ( r = 0.24 , P = 0.02 ); HC radius was positively correlated with SE ( r = 0.24 , P = 0.02 ) and was negatively correlated with mean keratometry ( r = - 0.20 , P = 0.046 ) and axial length ( r = - 0.21 , P = 0.03 ).
Conclusions.
The corneal refraction-related biomechanical alterations were associated with ocular characteristics.
Highly myopic eyes exhibited longer DA and smaller HC radius than do moderately myopic eyes; the eyes with longer axial length tend to have less corneal stiffness and are easier to deform under stress.
American Psychological Association (APA)
Wang, Jingyi& Li, Ying& Jin, Yumei& Yang, Xue& Zhao, Chan& Long, Qin. 2015. Corneal Biomechanical Properties in Myopic Eyes Measured by a Dynamic Scheimpflug Analyzer. Journal of Ophthalmology،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1069654
Modern Language Association (MLA)
Wang, Jingyi…[et al.]. Corneal Biomechanical Properties in Myopic Eyes Measured by a Dynamic Scheimpflug Analyzer. Journal of Ophthalmology No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1069654
American Medical Association (AMA)
Wang, Jingyi& Li, Ying& Jin, Yumei& Yang, Xue& Zhao, Chan& Long, Qin. Corneal Biomechanical Properties in Myopic Eyes Measured by a Dynamic Scheimpflug Analyzer. Journal of Ophthalmology. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1069654
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1069654