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. 2020 Oct 30;10:18717. doi: 10.1038/s41598-020-73223-9

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Representative cases with different macular VD and FAZ metrics. (A) An APAC eye has the lowest circularity index and irregular shape. (B) A PACS eye has the higher circularity index than APAC eyes and distorted FAZ shape. (C) A control eye has highest circularity index and regular shape. APAC acute primary angle closure, PACS primary angle closure suspect, cVLD vessel length density in central macular region, cVPD vessel perfusion density in central macular region, iVLD vessel length density in inner macular region, iVPD vessel perfusion density in inner macular region, oVLD vessel length density in outer macular region, oVPD vessel perfusion density in outer macular region, fVLD vessel length density of all regions, fVPD vessel length density of all regions, FAZ foveal avascular zone.