Table 2.
Ophthalmologic characteristics.
| Visual acuity | Mean: 20/100 | Range: 20/25–3/200 |
|---|---|---|
| Colour vision | Mean: 4/15 | Range: 0/15–8/15 |
| Visual perimetry | Normal 1/18 (8.3%) | Central scotoma 4/12 (33.3%) |
| Cecocentral scotoma 4/12 (33.3%) | ||
| Arcuate scotoma 2/12 (16.6%) | ||
| Enlarged blind spot 1/12 (8.3%) | ||
| OCT (RNFL in microns) | Mean: 68.7 | Range: 44–95 |
| OCT (localisation of the defect) | 4 quadrants 17/26 (65.3%) | |
| Temporal quadrant 7/26 (26.92%) | ||
| Superior/nasal 2/26 (7.69%) | ||
| Fundoscopy | Temporal pallor 29/36 (80.5%) | |
| Global pallor 7/36 (19.4%) | ||
| Optic nerve cupping 4/18 (22.2%) | ||
| Presence of cataract | 0/36 | 0% |
| Nystagmus | 4/36 (11.1%) | Jerk side 2/4 (50%) |
| Pendular 1/4 (25%) | ||
| Elliptical 1/4 (25%) | ||
| Strabismus | 7/36 (19.4%) | Exotropia 6/7 (85.7%) |
| Esophoria 1/7 (14.2%) |
Note. OCT = optic coherence tomography.