Table 2.
Clinical Characteristics of the Study Population by Symptoms
| Symptoms | At the onset | During the relapse | ||
|---|---|---|---|---|
| Number (of 177) | Percent | Number (of 177) | Percent | |
| Diplopia | 36 | 20.3 | 18 | 10.2 |
| Loss of vision | 58 | 32.8 | 40 | 22.6 |
| Color vision disorder | 0 | - | 2 | 1.1 |
| Scotoma | 1 | 0.6 | 0 | - |
| Eye movement disorder | 1 | 0.6 | 3 | 1.7 |
| Ataxia | 28 | 15.8 | 40 | 22.6 |
| Dysarthria | 3 | 1.7 | 5 | 2.8 |
| Cranial nerve palsy | 7 | 4 | 7 | 4 |
| Sensory | 50 | 28.2 | 55 | 31.6 |
| Motor | 52 | 29.4 | 54 | 30.5 |
| Behavioral disorder | 1 | 0.6 | 2 | 1.1 |
| Seizure | 5 | 2.8 | 6 | 3.4 |
| Defecation and urinary problems | 2 | 1.1 | 10 | 5.6 |