Table 2 The repeatability of two consecutive angiography measurements: vascular density, perfusion density, and foveal avascular zone metrics.

6-mm (entire area; mean ± SD, mm⁻¹)

17.562 ± 1.879

17.684 ± 1.662

0.354

0.824

(0.745–0.881)

3.898

(3.111–4.685)

Outer ring (mean ± SD, mm⁻¹)

17.563 ± 1.74

17.652 ± 1.557

0.355

0.882

(0.836–0.916)

3.512

(2.811–4.213)

Inner ring (mean ± SD, mm⁻¹)

16.974 ± 2.595

17.171 ± 2.216

0.191

0.859

(0.801–0.898)

5.943

(4.597–7.288)

1-mm (center; mean ± SD, mm⁻¹)

8.718 ± 3.374

8.816 ± 3.088

0.126

0.752

(0.701–0.822)

17.470

(14.120–20.820)

6-mm (entire area; mean ± SD)

0.419 ± 0.050

0.432 ± 0.045

0.287

0.845

(0.772–0.891)

4.042

(3.198–4.887)

Outer ring (mean ± SD, mm⁻¹)

0.433 ± 0.047

0.435 ± 0.043

0.310

0.867

(0.814–0.904)

3.661

(2.895–4.427)

Inner ring (mean ± SD, mm⁻¹)

0.402 ± 0.066

0.408 ± 0.058

0.157

0.843

(0.782–0.888)

6.295

(4.865–7.725)

1-mm (center; mean ± SD)

0.181 ± 0.079

0.197 ± 0.074

0.906

0.752

(0.674–0.772)

18.552

(15.079–22.025)

Entire area (mean ± SD, mm²)

0.267 ± 0.126

0.278 ± 0.141

0.314

0.705

(0.645–0.830)

18.166

(14.263–22.068)

Perimeter (mean ± SD, mm)

2.155 ± 0.644

2.148 ± 0.668

0.648

0.685

(0.554–0.775)

11.926

(9.119–14.733)

Circularity (mean ± SD)

0.707 ± 0.130

0.720 ± 0.110

0.194

0.603

(0.384–0.770)

10.966

(8.539–13.392)