Examination of visual acuity in the better eye
| VA in the better eye | Category of visual impairment* | No | % |
|---|---|---|---|
| *WHO/ICD 10 definition; †VA in the better eye could not be determined in 278 cases; ‡in four subjects with better eye acuity less than 0.3, capability for counting fingers was not explored. | |||
| ≥0.3 | 2644 | 89.9 | |
| <0.3 | 296 | 10.1 | |
| 1 | 147 | ||
| 2 | 52 | ||
| 3 | 35 | ||
| 4 | 43 | ||
| 5 (no light perception) | 15 | ||
| Not explored‡ | 4 | ||
| 2940† | 100.0 | ||