Table 1 Number of children (N = 205) with emmetropia, myopia, or hyperopia and astigmatism in either one or both eyes based on cycloplegic spherical equivalent refraction (SER)
From: Vision impairment in boys recruited to the iREAD study
| Â | Monocular N | Binocular N | Total N (%) [CI] |
|---|---|---|---|
Emmetropia (SER − 0.50 to + 0.50 D) | 0 | 38 | 38 (18.5%) [13.8–24.4%] |
Myopia (SER ≤ − 0.50 D) | 18 | 55 | 73 (35.6%) [29.4–42.4%] |
Total Hyperopia (SER ≥  + 0.50 D) | 27 | 65 | 92 (44.9%) [38.2–51.7%] |
 Hyperopia (SER ≥  + 0.50 D to 2.50 D) | 21 | 61 | 82 (40%) [33.5–46.8%] |
 Significant Hyperopia (SER ≥ 2.50 D) | 6 | 4 | 10 (4.9%) [2.7–8.8%] |
Myopia + Hyperopia | n/a | 2 | 2 (1%) [0.3–3.5%] |
Total Astigmatism | 28 | 33 | 61 (30.0%) [28.5–31.5%] |
 Astigmatism (cyl ≥ 0.75 D) | 28 | 29 | 57 (27.8%) [23.9–36.3%] |
 Significant astigmatism (cyl ≥ 3.00 D) | 2 | 2 | 4 (2.0%) [0.7–4.9%] |