Table 3.
Observed ratios in typically developing children (group 1), children with ocular disorders (group 2) and children with brain damage (group 3).
| Ratio | Group |
||
|---|---|---|---|
| 1 | 2 | 3 | |
| (n = 60) | (n = 21) | (n = 26) | |
| Uncrowded acuity/crowded acuity | |||
| n | 59 | 21 | 21 |
| Median | 1.50 | 1.50 | 2.00 |
| Mean | 1.60 | 1.42 | 1.94 |
| SD | 0.42 | 0.49 | 0.66 |
| Ratio ≥ 2 (n) | 14 | 3 | 14 |
| Grating acuity/uncrowded acuity | |||
| n | 59 | 15 | 22 |
| Median | 1.14 | 2.51 | 1.60 |
| Mean | 1.30 | 2.55 | 2.00 |
| SD | 0.33 | 1.98 | 1.91 |
| Ratio ≥ 2 (n) | 3 | 10 | 6 |
| Grating acuity/crowded acuity | |||
| n | 59 | 15 | 19 |
| Median | 1.71 | 3.35 | 2.57 |
| Mean | 2.04 | 3.75 | 3.96 |
| SD | 0.60 | 2.02 | 4.22 |
| Ratio ≥ 2 (n) | 23 | 12 | 13 |