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Figure 3: Swept-source optical coherence tomography angiography images of the optic nerve head region scanned over an area of 4.5 mm × 4.5 mm. (a) The imaging slab is set at 130 um below the surface. A meshwork of thin vessels, measuring 1,961,323 μm2 in the area, can be seen at this level. (b) The en-face optical coherence tomography projection shows the mass simulating a ladybird due to its strategic relationship with retinal vessels and the optic disc |
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