Offset of openings in optic nerve head canal at level of Bruch’s membrane, anterior sclera, and lamina cribrosa

Abstract We compared the central retinal vascular trunk (CRVT) position, as a surrogate of lamina cribrosa (LC) offset, with the anterior scleral opening (ASCO) offset from the Bruch’s membrane opening (BMO). Based on the BMO-centered radial scans, the BMO and ASCO margins were demarcated, and each...

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Autores principales:	Kyoung Min Lee, Hyoung Jun Ahn, Martha Kim, Sohee Oh, Seok Hwan Kim
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8acf75804c36469d8ebda97d5ad35019
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spelling	oai:doaj.org-article:8acf75804c36469d8ebda97d5ad350192021-11-21T12:19:38ZOffset of openings in optic nerve head canal at level of Bruch’s membrane, anterior sclera, and lamina cribrosa10.1038/s41598-021-01184-82045-2322https://doaj.org/article/8acf75804c36469d8ebda97d5ad350192021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-01184-8https://doaj.org/toc/2045-2322Abstract We compared the central retinal vascular trunk (CRVT) position, as a surrogate of lamina cribrosa (LC) offset, with the anterior scleral opening (ASCO) offset from the Bruch’s membrane opening (BMO). Based on the BMO-centered radial scans, the BMO and ASCO margins were demarcated, and each center was determined as the center of the best-fitted ellipse for each margin. The ASCO/BMO offset was defined as the offset between each center. Angular deviations and the extent of ASCO and CRVT offsets from the BMO center were compared directly. Incomplete demarcation of ASCO was found in 20%, which was associated with a larger BMO area and a larger ASCO offset from the BMO. The angular deviation of ASCO offset was associated with that of CRVT offset and that of the longest externally oblique border. The ASCO offset was smaller than the CRVT offset, and, unlike the CRVT offset, it was rarely deviated to the inferior side. The complete ASCO margin might not be demarcatable when determined on BMO-centered radial scans in the presence of an offset. Also, the ASCO, which reflects only the superficial scleral layer, might not reflect the LC position, because the LC might be shifted further from the ASCO.Kyoung Min LeeHyoung Jun AhnMartha KimSohee OhSeok Hwan KimNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kyoung Min Lee Hyoung Jun Ahn Martha Kim Sohee Oh Seok Hwan Kim Offset of openings in optic nerve head canal at level of Bruch’s membrane, anterior sclera, and lamina cribrosa
description	Abstract We compared the central retinal vascular trunk (CRVT) position, as a surrogate of lamina cribrosa (LC) offset, with the anterior scleral opening (ASCO) offset from the Bruch’s membrane opening (BMO). Based on the BMO-centered radial scans, the BMO and ASCO margins were demarcated, and each center was determined as the center of the best-fitted ellipse for each margin. The ASCO/BMO offset was defined as the offset between each center. Angular deviations and the extent of ASCO and CRVT offsets from the BMO center were compared directly. Incomplete demarcation of ASCO was found in 20%, which was associated with a larger BMO area and a larger ASCO offset from the BMO. The angular deviation of ASCO offset was associated with that of CRVT offset and that of the longest externally oblique border. The ASCO offset was smaller than the CRVT offset, and, unlike the CRVT offset, it was rarely deviated to the inferior side. The complete ASCO margin might not be demarcatable when determined on BMO-centered radial scans in the presence of an offset. Also, the ASCO, which reflects only the superficial scleral layer, might not reflect the LC position, because the LC might be shifted further from the ASCO.
format	article
author	Kyoung Min Lee Hyoung Jun Ahn Martha Kim Sohee Oh Seok Hwan Kim
author_facet	Kyoung Min Lee Hyoung Jun Ahn Martha Kim Sohee Oh Seok Hwan Kim
author_sort	Kyoung Min Lee
title	Offset of openings in optic nerve head canal at level of Bruch’s membrane, anterior sclera, and lamina cribrosa
title_short	Offset of openings in optic nerve head canal at level of Bruch’s membrane, anterior sclera, and lamina cribrosa
title_full	Offset of openings in optic nerve head canal at level of Bruch’s membrane, anterior sclera, and lamina cribrosa
title_fullStr	Offset of openings in optic nerve head canal at level of Bruch’s membrane, anterior sclera, and lamina cribrosa
title_full_unstemmed	Offset of openings in optic nerve head canal at level of Bruch’s membrane, anterior sclera, and lamina cribrosa
title_sort	offset of openings in optic nerve head canal at level of bruch’s membrane, anterior sclera, and lamina cribrosa
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/8acf75804c36469d8ebda97d5ad35019
work_keys_str_mv	AT kyoungminlee offsetofopeningsinopticnerveheadcanalatlevelofbruchsmembraneanteriorscleraandlaminacribrosa AT hyoungjunahn offsetofopeningsinopticnerveheadcanalatlevelofbruchsmembraneanteriorscleraandlaminacribrosa AT marthakim offsetofopeningsinopticnerveheadcanalatlevelofbruchsmembraneanteriorscleraandlaminacribrosa AT soheeoh offsetofopeningsinopticnerveheadcanalatlevelofbruchsmembraneanteriorscleraandlaminacribrosa AT seokhwankim offsetofopeningsinopticnerveheadcanalatlevelofbruchsmembraneanteriorscleraandlaminacribrosa
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Offset of openings in optic nerve head canal at level of Bruch’s membrane, anterior sclera, and lamina cribrosa

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