Table 2.
Distribution of intraocular pressure and VCDR in normal subjects
| Intraocular pressurea | Vertical cup-to-disc ratiob | ||||
|---|---|---|---|---|---|
| Right (mmHg, 95 % CI) | Left (mmHg, 95 % CI) | Right (95 % CI) | Left (95 % CI) | Asymmetry | |
| Percentile | 2407 | 2406 | 2414 | 2419 | 2390 |
| 0.5th | 8 (8–9) | 9 (8–9) | 0.1 (0.1–0.10) | 0.1 (0.1–0.1) | 0 (0–0) |
| 2.5th | 10 (10–10) | 11 (10–11) | 0.11 (0.1–0.13) | 0.12 (0.1–0.13) | 0 (0–0) |
| 50th | 16 (16–16) | 16 (16–16) | 0.34 (0.33–0.34) | 0.34 (0.34–0.35) | 0.05 (0.05–0.05) |
| 97.5th | 23 (23–24) | 23 (23–24) | 0.55 (0.54–0.57) | 0.58 (0.56–0.59) | 0.17 (0.16–0.18) |
| 99.5th | 26 (25–27) | 26.97 (26–27) | 0.64 (0.6–0.66) | 0.66 (0.63–0.67) | 0.24 (0.2–0.27) |
aDefined as available IOP by excluding eyes with definitive glaucomatous field defects or angle closure
bDefined as available VCDR by excluding eyes with definitive glaucomatous field defects