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. 2023 Apr 24;3:57. doi: 10.1038/s43856-023-00288-8

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© The Author(s) 2023

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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — A sO₂ measurements in 17 vessels in the optic disk from a healthy 23-year-old. The sO₂ values pseudo-colored and overlaid onto the fundus image. Scale bar: 300 μm; B Bar chart plots sO₂ measurements from panel A in individual arteries (red bar) and veins (blue) numbered from 1 to 17, as well as average sO₂ in all arteries and all veins; C B-scan from the position highlighted by the yellow dashed line in (A.) Scale bars: 150 μm.