Table 1.
Normal values of optic nerve head parameters with SD-OCT in children (N = 128).
| Total (N = 128) |
Boys (n = 60) | Girls (n = 68) | ||||
|---|---|---|---|---|---|---|
| Parameter | Mean ± SD | Median | Range | Mean ± SD | Mean ± SD | p |
| C/D area ratio | 0.20 ± 0.13 | 0.17 | 0–0.52 | 0.21 ± 0.12 | 0.19 ± 0.13 | 0.508 |
| C/D vertical ratio | 0.37 ± 0.17 | 0.36 | 0–0.73 | 0.39 ± 0.16 | 0.36 ± 0.17 | 0.337 |
| C/D horizontal ratio | 0.45 ± 0.20 | 0.43 | 0–0.83 | 0.46 ± 0.19 | 0.43 ± 0.20 | 0.442 |
| Rim area (mm2) | 1.84 ± 0.45 | 1.80 | 0.75–3.11 | 1.86 ± 0.41 | 1.83 ± 0.49 | 0.741 |
| Disc area (mm2) | 2.30 ± 0.42 | 2.26 | 0.96–3.26 | 2.34 ± 0.39 | 2.25 ± 0.44 | 0.219 |
| Cup volume (mm3) | 0.09 ± 0.10 | 0.05 | 0–0.54 | 0.09 ± 0.09 | 0.08 ± 0.11 | 0.765 |
Note. C/D = cup to disk.