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Proceedings Paper

Multiparameter thermo-mechanical OCT-based characterization of laser-induced cornea reshaping
Author(s): Vladimir Yu. Zaitsev; Alexandr L. Matveyev; Lev A. Matveev; Grigory V. Gelikonov; Alex Vitkin; Alexander I. Omelchenko; Olga I. Baum; Dmitry V. Shabanov; Alexander A. Sovetsky; Emil N. Sobol
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Paper Abstract

Phase-sensitive optical coherence tomography (OCT) is used for visualizing dynamic and cumulative strains and corneashape changes during laser-produced tissue heating. Such non-destructive (non-ablative) cornea reshaping can be used as a basis of emerging technologies of laser vision correction. In experiments with cartilaginous samples, polyacrilamide phantoms and excised rabbit eyes we demonstrate ability of the developed OCT system to simultaneously characterize transient and cumulated strain distributions, surface displacements, scattering tissue properties and possibility of temperature estimation via thermal-expansion measurements. The proposed approach can be implemented in perspective real-time OCT systems for ensuring safety of new methods of laser reshaping of cornea.

Paper Details

Date Published: 21 February 2017
PDF: 7 pages
Proc. SPIE 10067, Optical Elastography and Tissue Biomechanics IV, 100670V (21 February 2017); doi: 10.1117/12.2253610
Show Author Affiliations
Vladimir Yu. Zaitsev, Institute of Applied Physics of the Russian Academy of Sciences (Russian Federation)
Institute of Photonic Technologies (Russian Federation)
Alexandr L. Matveyev, Institute of Applied Physics of the Russian Academy of Sciences (Russian Federation)
Lev A. Matveev, Institute of Applied Physics of the Russian Academy of Sciences (Russian Federation)
Grigory V. Gelikonov, Institute of Applied Physics of the Russian Academy of Sciences (Russian Federation)
Alex Vitkin, Univ. of Toronto (Canada)
State Medical Academy of Nizhny Novgorod (Russian Federation)
Alexander I. Omelchenko, Institute of Applied Physics of the Russian Academy of Sciences (Russian Federation)
Institute of Photonic Technologies (Russian Federation)
Olga I. Baum, Institute of Photonic Technologies (Russian Federation)
Dmitry V. Shabanov, Institute of Applied Physics of the Russian Academy of Sciences (Russian Federation)
Alexander A. Sovetsky, Institute of Applied Physics of the Russian Academy of Sciences (Russian Federation)
Emil N. Sobol, Institute of Applied Physics of the Russian Academy of Sciences (Russian Federation)
Institute of Photonic Technologies (Russian Federation)


Published in SPIE Proceedings Vol. 10067:
Optical Elastography and Tissue Biomechanics IV
Kirill V. Larin; David D. Sampson, Editor(s)

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