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In vivo evaluation of corneal biomechanical properties by optical coherence elastography at different cross-linking irradiances

Corneal collagen cross-linking (CXL) strengthens the biomechanical properties of damaged corneas. Quantifying the changes of stiffness due to different CXL protocols is difficult, especially in vivo. A noninvasive elastic wave-based optical coherence elastography system was developed to construct in...

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Autores principales: Zhou, Yuheng, Wang, Yuanyuan, Shen, Meixiao, Jin, Zi, Chen, Yihong, Zhou, Yue, Qu, Jia, Zhu, Dexi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Society of Photo-Optical Instrumentation Engineers 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7000888/
https://www.ncbi.nlm.nih.gov/pubmed/31605471
http://dx.doi.org/10.1117/1.JBO.24.10.105001
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author Zhou, Yuheng
Wang, Yuanyuan
Shen, Meixiao
Jin, Zi
Chen, Yihong
Zhou, Yue
Qu, Jia
Zhu, Dexi
author_facet Zhou, Yuheng
Wang, Yuanyuan
Shen, Meixiao
Jin, Zi
Chen, Yihong
Zhou, Yue
Qu, Jia
Zhu, Dexi
author_sort Zhou, Yuheng
collection PubMed
description Corneal collagen cross-linking (CXL) strengthens the biomechanical properties of damaged corneas. Quantifying the changes of stiffness due to different CXL protocols is difficult, especially in vivo. A noninvasive elastic wave-based optical coherence elastography system was developed to construct in vivo corneal elasticity maps by excitation of air puff. Biomechanical differences were compared for rabbit corneas given three different CXL protocols while keeping the total energy delivered constant. The Young’s modulus was weaker in corneas treated with higher irradiance levels over shorter durations, and a slight increase of Young’s modulus was present in all groups one week after the recovery process. Due to the noninvasive nature and minimal force to generate corneal elastic waves, this technique has the potential for early detection and treatment of corneal diseases in clinic.
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spelling pubmed-70008882020-02-10 In vivo evaluation of corneal biomechanical properties by optical coherence elastography at different cross-linking irradiances Zhou, Yuheng Wang, Yuanyuan Shen, Meixiao Jin, Zi Chen, Yihong Zhou, Yue Qu, Jia Zhu, Dexi J Biomed Opt General Corneal collagen cross-linking (CXL) strengthens the biomechanical properties of damaged corneas. Quantifying the changes of stiffness due to different CXL protocols is difficult, especially in vivo. A noninvasive elastic wave-based optical coherence elastography system was developed to construct in vivo corneal elasticity maps by excitation of air puff. Biomechanical differences were compared for rabbit corneas given three different CXL protocols while keeping the total energy delivered constant. The Young’s modulus was weaker in corneas treated with higher irradiance levels over shorter durations, and a slight increase of Young’s modulus was present in all groups one week after the recovery process. Due to the noninvasive nature and minimal force to generate corneal elastic waves, this technique has the potential for early detection and treatment of corneal diseases in clinic. Society of Photo-Optical Instrumentation Engineers 2019-10-11 2019-10 /pmc/articles/PMC7000888/ /pubmed/31605471 http://dx.doi.org/10.1117/1.JBO.24.10.105001 Text en © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
spellingShingle General
Zhou, Yuheng
Wang, Yuanyuan
Shen, Meixiao
Jin, Zi
Chen, Yihong
Zhou, Yue
Qu, Jia
Zhu, Dexi
In vivo evaluation of corneal biomechanical properties by optical coherence elastography at different cross-linking irradiances
title In vivo evaluation of corneal biomechanical properties by optical coherence elastography at different cross-linking irradiances
title_full In vivo evaluation of corneal biomechanical properties by optical coherence elastography at different cross-linking irradiances
title_fullStr In vivo evaluation of corneal biomechanical properties by optical coherence elastography at different cross-linking irradiances
title_full_unstemmed In vivo evaluation of corneal biomechanical properties by optical coherence elastography at different cross-linking irradiances
title_short In vivo evaluation of corneal biomechanical properties by optical coherence elastography at different cross-linking irradiances
title_sort in vivo evaluation of corneal biomechanical properties by optical coherence elastography at different cross-linking irradiances
topic General
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7000888/
https://www.ncbi.nlm.nih.gov/pubmed/31605471
http://dx.doi.org/10.1117/1.JBO.24.10.105001
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