EYE article.pdf (1.58 MB)
The role of light in measuring ocular biomechanics
journal contribution
posted on 2016-02-08, 12:13 authored by Abby Wilson, J. Marshall, John TyrerJohn TyrerThe cornea is a highly specialised tissue with a unique set of biomechanical properties determined by its complex structure. The maintenance of these mechanical properties is fundamental to maintain clear vision as the cornea provides the majority of the focussing power of the eye. Changes to the biomechanics of the cornea can occur during ageing, disease, and trauma, or as a result of surgery. Recently there has been increased interest in the mechanical properties of the cornea as knowledge of these properties has significant implications for the improvement of current ocular treatments including PRK and LASIK, and for the diagnosis and tracking of corneal diseases and therapy such as keratoconus and crosslinking. Biomechanics are also important for the development of artificial corneal replacements. This paper describes the use of a novel, non-destructive lateral electronic speckle pattern shearing interferometer (ESPSI). The data generated via this technique give a full-field view of the mechanical response of the cornea under simulated physiological loading conditions, and enables strain and displacement to be determined in three planes. The technique allows corneal stiffness to be quantified and enables changes and non-homogeneities that occur due to surgery or disease to be detected.Eye advance online publication, 15 January 2016; doi:10.1038/eye.2015.263.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Eye (London, England)Volume
30Pages
234 - 240Citation
WILSON, A., MARSHALL, J. and TYRER, J.R., 2016. The role of light in measuring ocular biomechanics. Eye, 30( 2), pp.234-040.Publisher
© Nature Publishing Group on behalf of the Royal College of OphthalmologistsVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2016-01-15Notes
This paper was accepted for publication in the journal Eye and the definitive published version is available at http://dx.doi.org/10.1038/eye.2015.263ISSN
0950-222XeISSN
1476-5454Publisher version
Language
- en