Table 2.

 Five year incidence of different grades of visual impairment in the better seeing eye, as defined at baseline, among people with and without amblyopia

	Normal		Amblyopia
	No at risk	No (%)	No at risk	No (%)
Visual impairment
<6/12	2114		27
Correctable*		229 (10.8)		6 (22.2)
Non-correctable		35 (1.7)		3 (11.1)
<6/21	2180		50
Correctable*		161 (7.4)		5 (10.0)
Non-correctable		11 (0.5)		1 (2.0)
<6/60	2220		64
Correctable*		89 (4.0)		1 (1.6)
Non-correctable		31 (1.4)		2 (3.1)

*Correctable cases are those with improvement in visual acuity after subjective refraction.