Visual field sensitivity in 15 patients without clinical or VEP evidence of fellow eye involvement (concentric analysis of central 5° and temporal and nasal 5–10°)
| Macular region | Central | Nasal | Temporal |
| Affected eye: | |||
| Mean | 29.2 | 27.6 | 28.9 |
| SD | 2.9 | 4.5 | 3.3 |
| Fellow eye: | |||
| Mean | 31.0 | 29.7 | 29.7 |
| SD | 1.9 | 1.2 | 1.5 |
| Wilcoxon test | p<0.01 | NS | NS |