Table 3

Prevalence of visual impairment and its main causes in England, Scotland, and Wales; results are prevalence per 1000 (95% confidence interval)

1958 Birth cohort21
(n= 15 275, age 11 years)
1970 Birth cohort22
(n = 14 907, age 10 years)
Ocular or vision disorder
 Partial sight0.46 (0.12 to 0.79)0.54 (0.17 to 0.91)
 Blindness0.13 (0.05 to 0.31)0.34 (0.04 to 0.64)
Congenital cataract0.190.33
Optic atrophy0.190.13
Retinal dystrophy/albinism0.130.13
Retinopathy of prematurity0.07
Retinoblastoma0.07