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Keratometry and corneal topography using multiple delay element OCT

Plesea, Lucian and Podoleanu, Adrian Gh. (2008) Keratometry and corneal topography using multiple delay element OCT. In: Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XII. Proceedings of SPIE . SPIE. ISBN 978-0-8194-7022-5. (doi:10.1117/12.764376) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1117/12.764376

Abstract

We have presented previously a novel method for the evaluation of the surface shape of an object, with immediate application to measurement of cornea shape. This method uses single shot C-scans obtained by using a multiple delay element (MDE) in the reference path of an OCT system. A calibrated MDE-OCT system can be used to measure the elevation of points on the cornea, in contrast to existing methods which are based on measurement of the cornea slope. The associated algorithm for extracting corneal topography data points from the MDE-OCT C-Scan image will be presented, data points which can then be used to calculate the Zernike coefficients for the cornea shape. The differences between the existing systems and the MDE-OCT method for keratometry and corneal topography are discussed.

Item Type: Book section
DOI/Identification number: 10.1117/12.764376
Uncontrolled keywords: C-scan, Cornea curvature, Corneal topography, En-face OCT, Keratometry, Optical coherence tomography, Zernike coefficients,
Subjects: Q Science > QC Physics
R Medicine > R Medicine (General) > R857.O6 Optical coherence tomography
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Giles Tarver
Date Deposited: 24 Jul 2015 13:33 UTC
Last Modified: 26 Jul 2019 11:35 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49726 (The current URI for this page, for reference purposes)
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