Summary of FD2 data for all children examined
| Study status | Mean age (SD) (months) | Sex | Mean stereopsis (seconds of arc) (SD) | No | |
|---|---|---|---|---|---|
| M | F | ||||
| Responders | 47.7 (7.6) | 31 | 24 | 29.6 (13.1) | 55 |
| 6 metres | 49.2 (7.9) | 22 | 20 | 92.3 (52.6) | 42 |
| 3 metres | 42.9 (3.9) | 7 | 6 | 13 | |
| FD2 negative | 47.8(11.1) | 3 | 1 | 4 | |
| Total number | 34 | 25 | 59 | ||