Repeatability estimates of peripapillary vessel density measurements
| Vessel density | ICC | Sw (%) | CRw (%) | CVw (%) | ||||
| Normal | Glaucoma | Normal | Glaucoma | Normal | Glaucoma | Normal | Glaucoma | |
| Whole enface disc | 0.85 (0.75 to 0.92) | 0.95 (0.91 to 0.97) | 1.2 (1.0 to 1.5) | 1.3 (1.1 to 1.5) | 3.3 (2.8 to 3.9) | 3.5 (3.0 to 4.1) | 2.4 (1.8 to 2.9) | 2.6 (2.2 to 3.0) |
| Peripapillary | 0.86 (0.77 to 0.92) | 0.93 (0.87 to 0.96) | 1.5 (1.2 to 1.8) | 1.5 (1.3 to 1.8) | 4.1 (3.4 to 4.9) | 4.1 (3.5 to 4.8) | 2.5 (1.8 to 3.0) | 2.6 (2.1 to 3.0) |
| Nasal | 0.85 (0.74 to 0.91) | 0.84 (0.74 to 0.91) | 1.8 (1.5 to 2.2) | 1.7 (1.5 to 2.1) | 5.0 (4.2 to 6.0) | 4.8 (4.1 to 5.7) | 3.3 (2.4 to 4.0) | 3.1 (2.6 to 3.5) |
| Inferonasal | 0.71 (0.55 to 0.83) | 0.93 (0.88 to 0.96) | 2.4 (2.0 to 2.9) | 2.2 (1.8 to 2.5) | 6.6 (5.5 to 7.9) | 6.0 (5.1 to 7.0) | 4.0 (3.0 to 4.8) | 4.1 (3.3 to 4.7) |
| Inferotemporal | 0.75 (0.59 to 0.85) | 0.96 (0.93 to 0.97) | 2.3 (2.0 to 2.8) | 2.6 (2.2 to 3.0) | 6.5 (5.4 to 7.7) | 7.1 (6.0 to 8.4) | 3.7 (2.4 to 4.6) | 6.6 (4.7 to 9.5) |
| Superotemporal | 0.85 (0.75 to 0.92) | 0.94 (0.89 to 0.96) | 1.9 (1.6 to 2.3) | 2.4 (2.0 to 2.8) | 5.3 (4.4 to 6.3) | 6.5 (5.5 to 7.7) | 3.0 (2.3 to 3.6) | 4.2 (3.1 to 5.1) |
| Superonasal | 0.78 (0.64 to 0.87) | 0.87 (0.79 to 0.93) | 2.5 (2.1 to 3.0) | 2.6 (2.2 to 3.0) | 7.0 (5.8 to 8.4) | 7.1 (6.0 to 8.4) | 4.4 (2.6 to 5.6) | 4.6 (3.6 to 5.5) |
| Temporal | 0.78 (0.65 to 0.88) | 0.71 (0.56 to 0.83) | 2.4 (2.0 to 2.9) | 2.5 (2.1 to 2.9) | 6.7 (5.6 to 8.0) | 6.9 (5.9 to 8.0) | 4.2 (3.0 to 5.0) | 4.1 (3.3 to 4.8) |
Figures in parenthesis represent 95% CIs.
CRw, coefficient of repeatability; CVw, coefficient of variation; ICC, intraclass correlation coefficient; Sw, within-subject SD.