Table 1 Basic descriptive statistics of ETD, OND, ONSD and OND/ONSD ratio
Mean ± SD | Median (quatile range) | Minimum | Maximum | |
|---|---|---|---|---|
ETD (mm) | 22.4 ± 1.1 | 22.3 (21.6 - 23.1) | 19.6 | 25.9 |
OND (mm) | 3.2 ± 0.4 | 3.2 (2.9 - 3.4) | 1.8 | 4.3 |
ONSD (mm) | 5.1 ± 0.5 | 5.1 (4.7 - 5.4) | 3.5 | 6.4 |
OND/ONSD ratio | 0.63 ± 0.07 | 0.63 (0.59 - 0.67) | 0.37 | 0.85 |