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Noninvasive and Noncontact Sequential Imaging of the Iridocorneal Angle and the Cornea of the Eye

PURPOSE: High-resolution imaging of the critical anatomic structures of the eye, especially of the anterior chamber, in vivo, remains a challenge, even with currently available state-of-the-art medical imaging techniques. This study aims for the noninvasive and noncontact sequential imaging of the i...

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Autores principales: Hong, Xun Jie Jeesmond, Suchand Sandeep, C. S., Shinoj, V. K., Aung, Tin, Barathi, Veluchamy Amutha, Baskaran, Mani, Murukeshan, Vadakke Matham
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Association for Research in Vision and Ophthalmology 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7401920/
https://www.ncbi.nlm.nih.gov/pubmed/32821473
http://dx.doi.org/10.1167/tvst.9.5.1
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author Hong, Xun Jie Jeesmond
Suchand Sandeep, C. S.
Shinoj, V. K.
Aung, Tin
Barathi, Veluchamy Amutha
Baskaran, Mani
Murukeshan, Vadakke Matham
author_facet Hong, Xun Jie Jeesmond
Suchand Sandeep, C. S.
Shinoj, V. K.
Aung, Tin
Barathi, Veluchamy Amutha
Baskaran, Mani
Murukeshan, Vadakke Matham
author_sort Hong, Xun Jie Jeesmond
collection PubMed
description PURPOSE: High-resolution imaging of the critical anatomic structures of the eye, especially of the anterior chamber, in vivo, remains a challenge, even with currently available state-of-the-art medical imaging techniques. This study aims for the noninvasive and noncontact sequential imaging of the iridocorneal angle, especially the trabecular meshwork (TM) and the cornea of the eye in high-resolution using a newly developed imaging platform. METHODS: Bessel beam scanned light sheet fluorescence microscopy is used to attain high-resolution images of the TM. The ability of the Bessel beam to self-reconstruct around obstacles increases the image contrast at the TM region inside eye by reducing scattering and shadow artifacts. With minimal modifications, the excitation arm of the developed imaging system is adapted for noncontact, high-resolution corneal imaging. RESULTS: High-resolution images of the TM structures and cellular-level corneal structures are obtained in ex vivo porcine eyes, and subsequently in New Zealand white rabbit, in vivo. The spatial resolution of the developed system is 2.19 µm and has a noncontact working distance of 20 mm. CONCLUSIONS: A high-resolution imaging platform for noncontact sequential imaging of the TM and the cornea of the eye is developed. This imaging system is expected to be of potential interest in the evaluation and diagnosis of glaucoma and corneal diseases. TRANSLATIONAL RELEVANCE: The developed prototype offers the plausibility of in vivo, noncontact, and high-resolution imaging of the iridocorneal angle and cornea of the eye that will aid clinicians in diagnosing open-angle glaucoma and corneal diseases better.
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spelling pubmed-74019202020-08-18 Noninvasive and Noncontact Sequential Imaging of the Iridocorneal Angle and the Cornea of the Eye Hong, Xun Jie Jeesmond Suchand Sandeep, C. S. Shinoj, V. K. Aung, Tin Barathi, Veluchamy Amutha Baskaran, Mani Murukeshan, Vadakke Matham Transl Vis Sci Technol Article PURPOSE: High-resolution imaging of the critical anatomic structures of the eye, especially of the anterior chamber, in vivo, remains a challenge, even with currently available state-of-the-art medical imaging techniques. This study aims for the noninvasive and noncontact sequential imaging of the iridocorneal angle, especially the trabecular meshwork (TM) and the cornea of the eye in high-resolution using a newly developed imaging platform. METHODS: Bessel beam scanned light sheet fluorescence microscopy is used to attain high-resolution images of the TM. The ability of the Bessel beam to self-reconstruct around obstacles increases the image contrast at the TM region inside eye by reducing scattering and shadow artifacts. With minimal modifications, the excitation arm of the developed imaging system is adapted for noncontact, high-resolution corneal imaging. RESULTS: High-resolution images of the TM structures and cellular-level corneal structures are obtained in ex vivo porcine eyes, and subsequently in New Zealand white rabbit, in vivo. The spatial resolution of the developed system is 2.19 µm and has a noncontact working distance of 20 mm. CONCLUSIONS: A high-resolution imaging platform for noncontact sequential imaging of the TM and the cornea of the eye is developed. This imaging system is expected to be of potential interest in the evaluation and diagnosis of glaucoma and corneal diseases. TRANSLATIONAL RELEVANCE: The developed prototype offers the plausibility of in vivo, noncontact, and high-resolution imaging of the iridocorneal angle and cornea of the eye that will aid clinicians in diagnosing open-angle glaucoma and corneal diseases better. The Association for Research in Vision and Ophthalmology 2020-04-09 /pmc/articles/PMC7401920/ /pubmed/32821473 http://dx.doi.org/10.1167/tvst.9.5.1 Text en Copyright 2020 The Authors http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
spellingShingle Article
Hong, Xun Jie Jeesmond
Suchand Sandeep, C. S.
Shinoj, V. K.
Aung, Tin
Barathi, Veluchamy Amutha
Baskaran, Mani
Murukeshan, Vadakke Matham
Noninvasive and Noncontact Sequential Imaging of the Iridocorneal Angle and the Cornea of the Eye
title Noninvasive and Noncontact Sequential Imaging of the Iridocorneal Angle and the Cornea of the Eye
title_full Noninvasive and Noncontact Sequential Imaging of the Iridocorneal Angle and the Cornea of the Eye
title_fullStr Noninvasive and Noncontact Sequential Imaging of the Iridocorneal Angle and the Cornea of the Eye
title_full_unstemmed Noninvasive and Noncontact Sequential Imaging of the Iridocorneal Angle and the Cornea of the Eye
title_short Noninvasive and Noncontact Sequential Imaging of the Iridocorneal Angle and the Cornea of the Eye
title_sort noninvasive and noncontact sequential imaging of the iridocorneal angle and the cornea of the eye
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7401920/
https://www.ncbi.nlm.nih.gov/pubmed/32821473
http://dx.doi.org/10.1167/tvst.9.5.1
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