Fig. 4From: Correlation between macular edema recurrence and macular capillary network destruction in branch retinal vein occlusionHemi-vessel density disparity in the SCP and DCP. An en face 3 × 3-mm OCTA image of the SCP (a) is divided into two regions, a hemi-superior macular area (b) and a hemi-inferior macular area (c) by the horizontal blue line. The hemi-vessel density disparity in the SCP is derived by subtracting the vessel density values of the affected hemi-area from the unaffected hemi-area obtained from the binarized images (d, e). An en face 3 × 3-mm OCTA image of the DCP (f) is divided into a hemi-superior macular area (g) and a hemi-inferior macular area (h) by the blue line. The hemi-vessel density disparity in the DCP is derived by subtracting the vessel density values of the affected hemi-area from the unaffected hemi-area obtained from the binarized images (i, j). SCP: superficial capillary plexus, DCP: deep capillary plexus, OCTA: optical coherence tomography angiographyBack to article page