Figure 1
Figure 2
Ocular movement and cerebellar examination findings
| Ocular motor /cerebellar examination | n (N = 108) | % |
|---|---|---|
| Saccadic pursuit | 23 | 21.3 |
| Dysmetric saccade | 16 | 14.8 |
| Gaze-evoked nystagmus | 17 | 15.7 |
| Dysmetria finger to nose | 10 | 9.3 |
| Dysdiadochokinesia | 4 | 3.7 |
| Positive Romberg | 11 | 10.2 |
| Ataxic tandem gait | 51 | 47.2 |
Neurotological examination findings
| Neurotological examination | n (N = 107) | % |
|---|---|---|
| Abnormal otoscopy | 6 | 5.5 |
| Bilateral positive head thrust | 75 | 70.1 |
| Unilateral positive head thrust | 9 | 8.4 |
| Normal head thrust | 23 | 21.5 |
| Post head-shake nystagmus | 22 | 20.6 |
| Abnormal VOR suppression | 16 | 14.9 |
Causes of oscillopsia
| Cause of oscillopsia | n | % |
|---|---|---|
| Drug ototoxicity | 21 | 19.3 |
| Ménière’s disease | 11 | 10.1 |
| Cerebellar/primary vestibulocerebellar degenerations | 11 | 10.1 |
| Recurrent vestibulopathy | 9 | 8.3 |
| Vestibular neuronitis | 4 | 3.7 |
| Multiple sclerosis | 4 | 3.7 |
| Post stapes surgery | 3 | 2.8 |
| Post trauma | 3 | 2.8 |
| Stroke | 3 | 2.8 |
| Tumor | 3 | 2.8 |
| Meningitis/encephalitis | 2 | 1.8 |
| Miscellaneous | 5 | 4.6 |
| Unknown | 30 | 27.5 |
| Total | 109 | 100 |