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Fig. 4 | Malaria Journal

Fig. 4

From: Grading fluorescein angiograms in malarial retinopathy

Fig. 4

Segments of the venous network (small and large venules). Montage of FA images (left eye). Large vessel segments are marked in red, and small vessel segments in yellow. A break in a line indicates the junction between two vessel segments. New vessel segments begin where a vessel meets another vessel of similar or larger calibre. Small vessels extend from the downstream limit of the post-capillary venule complex (~500 μm from capillary bed) to the point where the small vessel joins another vessel of similar or larger calibre. Large vessels extend from this point to the disc. Sections of large vessels begin and end at junctions between one large vessel and another large vessel of similar or greater calibre. Other visible features in this figure include disc leak, and one site of large focal leak (inferior to the disc)

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