Biomechanical Measurement of Rabbit Cornea by a Modified Scheimpflug Device
Joint Authors
Zheng, Danying
Zhang, Bo
Gu, Jianjun
Zhang, Xiaoxiao
Yang, Bin
Wang, Zheng
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-07-03
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Purpose.
To explore the probability and variation in biomechanical measurements of rabbit cornea by a modified Scheimpflug device.
Methods.
A modified Scheimpflug device was developed by imaging anterior segment of the model imitating the intact eye at various posterior pressures.
The eight isolated rabbit corneas were mounted on the Barron artificial chamber and images of the anterior segment were taken at posterior pressures of 15, 30, 45, 60, and 75 mmHg by the device.
The repeatability and reliability of the parameters including CCT, ACD, ACV, and CV were evaluated at each posterior pressure.
All the variations of the parameters at the different posterior pressures were calculated.
Results.
All parameters showed good intraobserver reliability (Cronbach’s alpha; intraclass correlation coefficient, α, ICC > 0.96) and repeatability in the modified Scheimpflug device.
With the increase of posterior pressures, the ratio of CCT decreased linearly and the bulk modulus gradually reduced to a platform.
The increase of ACD was almost linear with the posterior pressures elevated.
Conclusions.
The modified Scheimpflug device was a valuable tool to investigate the biomechanics of the cornea.
The posterior pressure 15–75 mmHg range produced small viscoelastic deformations and nearly linear pressure-deformation response in the rabbit cornea.
American Psychological Association (APA)
Zhang, Bo& Gu, Jianjun& Zhang, Xiaoxiao& Yang, Bin& Wang, Zheng& Zheng, Danying. 2016. Biomechanical Measurement of Rabbit Cornea by a Modified Scheimpflug Device. Journal of Ophthalmology،Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1110083
Modern Language Association (MLA)
Zhang, Bo…[et al.]. Biomechanical Measurement of Rabbit Cornea by a Modified Scheimpflug Device. Journal of Ophthalmology No. 2016 (2016), pp.1-6.
https://search.emarefa.net/detail/BIM-1110083
American Medical Association (AMA)
Zhang, Bo& Gu, Jianjun& Zhang, Xiaoxiao& Yang, Bin& Wang, Zheng& Zheng, Danying. Biomechanical Measurement of Rabbit Cornea by a Modified Scheimpflug Device. Journal of Ophthalmology. 2016. Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1110083
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1110083