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. 2015 Sep 24;14:367. doi: 10.1186/s12936-015-0897-7

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© MacCormick et al. 2015

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided 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 Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 3 — The post-capillary venule complex, small venules, large venules. Left eye point A represents the beginning of a ‘small venule’ segment, which ends at point B when two small venules converge. Point B is also the beginning of a large venule, which ends at the optic disc. The scale bar shows 1/3 disc diameter (~500 μm) from the convergence of capillaries on to the post-capillary venule, and approximates the length of the post-capillary venule complex. The post-capillary venule complex begins at the junction of two capillaries and extends a distance of 1/3 disc diameter downstream towards the small venules. Other visible features in this figure include disc leak, and intravascular filling defects (e.g. small venule at point A)