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. 2020 Jul 20;192(29):E822–E831. doi: 10.1503/cmaj.191085

Table 5:

Prevalence of eye problems among children screened (for the first time) and among those undergoing their first eye examination

Disorder No. (%) of children
n = 4811
With eye problems With eye problems and undergoing first examination
Any problem 516 (10.7) 347 (7.2)
Amblyopia 164 (3.4) 121 (2.5)
Amblyopia risk factors 455 (9.5) 301 (6.3)
 Strabismus 45 (0.9) 22 (0.5)
 Reduced stereoacuity 172 (3.6) 92 (1.9)
Any refractive error 324 (6.7) 237 (4.9)
 Hyperopia 124 (2.6) 84 (1.7)
 Astigmatism 227 (4.7) 167 (3.5)
 Anisometropia 44 (0.9) 29 (0.6)
 Myopia 13 (0.3) 11 (0.2)
Other problems 17 (0.4) 7 (0.1)

Note: Prevalence was calculated from all children screened for the first time in Year 1 (n = 2519) and in Year 2 (n = 2292). If a child had more than 1 eye problem, they were counted in each applicable disorder category. Other problems that we identified were 6 cases of opaque media, 5 cases of limited/overactive ocular motility, 3 cases of nystagmus, 2 cases of optic nerve abnormality and 1 case of narrow angles.