| VF impairment | Frequence | Number of patients |
| Bitemporal hemianopsia | 20.5% | 16 |
| Lateral homonymous hemianopsia | 3.8% | 3 |
| Other VF cut | 52.6% | 41 |
| Unilateral hemianopsia | 3.8% | 3 |
| No VF abnormality | 19.2% | 15 |
| TOTAL | 100% | 78 |