Optical coherence elastography of the cornea after electromechanical reshaping

Katelyn K. Dilley; Daniel J. Kim; Lauren Liu; Fengyi Zhang; Wei Jin; Zhikai Zhu; Ellen M. Hong; Zhongping Chen; Michael G. Hill; Brian J. F. Wong

doi:10.1117/12.3008909

13 March 2024 Optical coherence elastography of the cornea after electromechanical reshaping

Katelyn K. Dilley, Daniel J. Kim, Lauren Liu, Fengyi Zhang, Wei Jin, Zhikai Zhu, Ellen M. Hong, Zhongping Chen, Michael G. Hill, Brian J. F. Wong

Author Affiliations +

Proceedings Volume PC12824, Ophthalmic Technologies XXXIV; PC128241V (2024) https://doi.org/10.1117/12.3008909
Event: SPIE BiOS, 2024, San Francisco, California, United States

Conference Poster

Abstract

Electromechanical reshaping (EMR) has the potential to change corneal shape to correct refractive errors without altering the mechanical properties of the cornea. Using acoustic radiation force (ARF) to stimulate the cornea of ex vivo New Zealand white rabbit globes and optical coherence elastography (OCE) to detect corneal response, the cornea’s elasticity was quantitatively determined pre- and post-EMR treatment. In addition, an optical coherence tomography (OCT) system was used to determine changes in corneal curvature. Ultimately, EMR treatment induced a shape change in the cornea and the elasticity of the cornea was similar before and after EMR treatment, indicating minimal damage.

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Katelyn K. Dilley, Daniel J. Kim, Lauren Liu, Fengyi Zhang, Wei Jin, Zhikai Zhu, Ellen M. Hong, Zhongping Chen, Michael G. Hill, and Brian J. F. Wong "Optical coherence elastography of the cornea after electromechanical reshaping", Proc. SPIE PC12824, Ophthalmic Technologies XXXIV, PC128241V (13 March 2024); https://doi.org/10.1117/12.3008909

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