Table 2 Mean flow density ± SD; (min- max) in the deep OCT angiogram for each session; AD: Mean of the absolute difference between the first and second session; P-value: paired t-test; CR: coefficients of repeatability (95% confidence intervals) and ICC: intraclass correlation coefficient (95% confidence intervals) with and without eye tracker

whole en face

with eye tracker

59.8 ± 1.5 (56.8–62.5)

0.02

59.9 ± 1.5 (57.7–62.8)

0.89

3.51 (2.15–4.86)

0.3 (−0.15–0.65)

without eye tracker

58.0 ± 3.3 (48.2–62.2)

58.9 ± 1.6 (54.6–61.3)

0.24

6.92 (4.24–9.60)

0.07 (− 0.37–0.49)

fovea

with eye tracker

31.1 ± 5.8 (20.9–43.7)

0.74

31.4 ± 5.2 (22.1–45.2)

0.49

3.79 (2.32–5.26)

0.94 (0.85–0.98)

without eye tracker

31.3 ± 5.5 (21.7–44.2)

31.3 ± 5.9 (18.7–45.6)

0.98

6.59 (4.04–9.15)

0.83 (0.61–0.93)

parafovea

with eye tracker

62.6 ± 1.6 (60.1–65.8)

0.01

62.5 ± 2.0 (58.6–65.4)

0.81

3.56 (2.18–4.94)

0.50 (0.08–0.77)

without eye tracker

60.7 ± 3.3 (53.4–65.6)

61.6 ± 2.1 (56.9–64.5)

0.22

6.07 (3.72–8.42)

0.37 (− 0.08–0.69)

temporal

with eye tracker

60.7 ± 2.3 (55.5–64.5)

0.35

60.8 ± 2.2 (57.1–65.6)

0.86

5.11 (7.09–3.13)

0.33 (− 0.12–0.67)

without eye tracker

59.9 ± 3.1 (52.4–65.1)

60.9 ± 2.3 (57.1–64.8)

0.18

6.20 (3.80–8.60)

0.35 (− 0.10–0.68)

superior

with eye tracker

64.0 ± 1.8 (60.6–69.0)

0.01

64.4 ± 1.8 (60.0–67.6)

0.48

4.13 (2.53–5.73)

0.49 (0.08–0.76)

without eye tracker

62.0 ± 3.7 (54.4–68.0)

62.5 ± 2.6 (56.9–66.1)

0.43

5.74 (3.52–7.97)

0.57 (0.19–0.81)

nasal

with eye tracker

61.6 ± 1.6 (58.2–63.4)

0.01

61.0 ± 2.1 (56.9–63.9)

0.14

3.43 (2.10–4.76)

0.55 (0.16–0.80)

without eye tracker

59.2 ± 4.2 (50.7–65.0)

60.6 ± 3.0 (53.9–67.6)

0.19

9.22 (5.65–12.79)

0.16 (− 0.29–0.55)

inferior

with eye tracker

64.2 ± 1.8 (60.5–67.9)

0.05

64.2 ± 2.6 (57.8–67.9)

0.99

4.71 (2.88–6.53)

0.41 (− 0.03–0.72)

without eye tracker

61.9 ± 5.3 (45.0–69.4)

62.4 ± 2.8 (53.6–66.4)

0.68

11.07 (6.78–15.35)

0.11 (0.34–0.52)