Table 2 Estimated prevalence of refractive error (%) by age in children aged 4 to 12 years.
Age | Myopia | Emmetropia | Hyperopia | N | |||||
|---|---|---|---|---|---|---|---|---|---|
| Â | More than -3.75 | -0.50 to -3.75 | of -0.50 | -0.25 to +0.50 | +0.75 to +1.25 | More than +1.25 | Female | Male | All |
4 | 0.0 | 2.3 | 0.0 | 43.2 | 50.0 | 4.5 | 24 | 16 | 44 |
5 | 0.4 | 1.5 | 1.2 | 49.8 | 41.3 | 5.8 | 121 | 129 | 259 |
6 | 0.0 | 1.7 | 0.7 | 47.6 | 43.4 | 6.6 | 145 | 133 | 286 |
7 | 0.0 | 2.5 | 2.5 | 54.8 | 33.1 | 7.0 | 72 | 80 | 157 |
8 | 1.0 | 5.6 | 0.5 | 49.0 | 29.6 | 14.3 | 100 | 85 | 196 |
9 | 0.8 | 6.5 | 1.5 | 56.3 | 29.7 | 5.3 | 133 | 128 | 263 |
10 | 2.4 | 9.0 | 2.4 | 54.7 | 27.8 | 3.8 | 149 | 88 | 212 |
11 | 0.5 | 10.9 | 2.1 | 58.0 | 24.5 | 4.0 | 146 | 189 | 376 |
12 | 2.1 | 11.2 | 1.4 | 57.3 | 22.4 | 5.6 | 61 | 77 | 143 |