Table 2

Estimated prevalence of refractive error (%) by age in children aged 4 to 12 years.

Age

Myopia

Emmetropia

Hyperopia

N


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


Junghans and Crewther BMC Ophthalmology 2005 5:1   doi:10.1186/1471-2415-5-1

Open Data