| VF impairment | Frequence | Number of patients |
| Bitemporal hemianopsia | 46.9% | 38 |
| Lateral homonymous hemianopsia | 4.9% | 4 |
| Other VF cut | 30.9% | 25 |
| Unilateral hemianopsia | 16% | 13 |
| No VF abnormality | 1.2% | 1 |
| TOTAL | 100% | 81 |