Fig. 1

SS-OCTA macular area 6 mm*6 mm retinal thickness and retinal blood flow parameter detection (Fig. 1a. According to the ETDRS grid device, three concentric circles are automatically inserted into the macular region; Fig. 1b. Superficial retinal capillary perfusion density according to ETDRs (numbers 1–9 in the figure represent the foveal area of the retina, the temporal side of the inner ring, the upper side of the inner circle, the nasal side of the inner circle, the lower part of the inner circle, the temporal side of the outer circle, the upper side of the outer circle, the nasal side of the outer circle and the lower part of the outer circle, respectively); Fig. 1c. Avascular area (FAZ) of the central fovea of the macula, as indicated in Fig. 1a and d. Inner retinal (ILM-IPL outside) structure, as indicated by the red arrow; Fig. 1e. Outer retinal (INL-RPE layer) structure, as indicated by the blue arrow; Fig. 1f. Full-thickness retinal (ILM to RPE layer) structure, as pointed by the purple arrow)