Fig. 2

The representative images of OCTA images of normal and long axial length eyes showed the comparation of VLD, PD and FAZ area between the two groups. a and b showed two repeated OCTA 3 × 3 mm SCP en face image and b-scans of a 25-year-old male with an axial length of 24.51 mm. c and d showed two repeat 3 × 3 mm SCP en face images of a 35-year-old male with an axial length of 27.34 mm. The yellow area was the automatically segmented foveal avascular zone. The upper and right numbers were VLD and PD in the inner ring respectively. e and f showed two repeated OCTA 6 × 6 mm scans of a 26-year-old female with an axial length of 23.58 mm; g and h showed 6 × 6 mm scans of a 35-year-old male with an axial length of 27.27 mm. The yellow area was the automatically segmented foveal avascular zone. The top, upper middle, lower middle and bottom numbers represent VLD in the outer ring, VLD in the inner ring, PD in the inner ring and PD in the outer ring. Noticed the differences in all metrics between two repeated scans and lower repeatability in long axial eyes