Table 2.
Visual acuity and Impaired Colour Vision (ICV)
| Visual acuity | ICV not present | ICV present | |
| 6/12 or better | <0.01* | ||
| Yes | 658 (78.5) | 180 (21.5) | |
| No | 2 (18.2) | 9 (81.8) | |
| 6/18 or better | 0.22 | ||
| Yes | 660 (77.8) | 188 (22.2) | |
| No | 0 (0) | 1 (100) | |
| 6/24 or better | - | ||
| Yes | 660 (77.7) | 189 (22.3) | |
| No | 0 (0) | 0 (0) | |
| Right Only | Left Only | ||
| Type of ICV | 0.16 | ||
| Protan | 0 (0) | 2 (100) | |
| Deutan | 7 (70.0) | 3 (30.0) | |
| Tritan | 49 (64.5) | 27 (35.5) |
Abbreviations: ICV impaired colour vision
*p < 0.05