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. 2021 Apr 29;15:655096. doi: 10.3389/fncel.2021.655096

FIGURE 1.

FIGURE 1

Commercial near-infrared (NIR) and visible Optical Coherence Tomography (OCT) of a 26 years old Asian male with brown-colored iris. (A) OCT generates cross-sectional images by scanning broad bandwidth light on the fundus of the retina. Commercial NIR OCT (B) and visible light OCT (C) images of similar retinal eccentricities, intersecting the foveal pit superior to the foveola. Compared to commercial NIR OCT, visible light OCT achieves fivefold finer axial resolution, which improves visualization of substrata within the inner plexiform layer (IPL). In the visible light OCT image, IPL stratification is evident everywhere except near the central foveal pit. The NIR OCT image (B) was cropped from a Zeiss Cirrus High Definition 5 Line Raster scan (approximate location shown on fundus image in A).