Table 5 WHO category of vision of the children in blind schools and blind classes.
WHO category | Visual acuity (logMAR) | N | % | |
|---|---|---|---|---|
1 | Mild impairment | 0.5 ≤ VA < 0.3 | 1 | 1.8 |
2 | Moderate visual impairment | 1.0 ≤ VA < 0.5 | 16 | 28.6 |
3 | Severe visual impairment | 1.3 ≤ VA < 1.0 | 5 | 8.9 |
4 | Blindness | 1.7 ≤ VA < 1.3 | 13 | 23.2 |
5 | Blindness | PL ≤ VA < 1.7 | 15 | 26.8 |
6 | Blindness | NPL | 2 | 3.6 |
9 | Undetermined or unspecified | 4 | 7.1 | |
Total | 56 | 100 |
