The direction of the nystagmus plane in 224 subjects
| Plane of nystagmus | Number of subjects | % |
|---|---|---|
| Horizontal uniplanar | 174 | 77.7 |
| Horizontal and torsional | 27 | 12.0 |
| Horizontal, vertical and torsional | 8 | 3.6 |
| Horizontal and vertical | 6 | 2.7 |
| Torsional | 5 | 2.2 |
| Vertical | 4 | 1.8 |