Superficial Retinal Vessel Density and Foveal Avascular Zone in Myopic Anisometropia: An OCTA-Based Study in Young Chinese Children

Figure 1

(a) Retinal segmentation at optical coherence tomography (OCT) angiography. (b) The superficial retinal vessel density. (c) The superficial retinal perfusion density. (d) The colored lines in horizontal OCT B-scans show segmentation lines that define the different depth in the retinal tissue of the superficial capillary plexus. (e) Graphic representation of retinal area evaluated at OCT angiography. The software selected the  mm image with 2 rings of 3.0 and 1.0 mm diameter centered on the fovea. The vessel density was calculated for the whole 3 mm circle area centered on the fovea (whole image) (1E), for the area inside the central 1 mm circle (foveal sector) (2E), for the area between the outer 3 mm circle and the inner 1 mm circle (parafoveal sector) (3E).

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