The Difference in Repeatability of Automated Superficial Retinal Vessel Density according to the Measurement Area Using OCT Angiography

Figure 1

Representative optical coherence tomography angiography (OCTA) images acquired from a 3 × 3 mm scan (upper row) and 6 × 6 mm scan (lower row). A vessel density map of the superficial capillary plexus (SCP) according to the Early Treatment of Diabetic Retinopathy Study (ETDRS) subfields (a, d). A perfusion density map of the SCP according to the ETDRS subfields (b, e). The automatically detected foveal avascular zone (c, d).