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Distribution of measured visual acuity
| Visual function according to reference values | WHO | Percentage | n |
|---|---|---|---|
| Normal vision | >0.8 | 4.5 | 4 |
| Slightly visually impaired | 0.4–0.8 | 55.7 | 49 |
| Visually impaired | ≤0.4 | 39.8 | 35 |
| Total | 100.0 | 88 |
Abbreviation: WHO, World Health Organization.
