Table 4.

Best-corrected visual acuities in the better eye, according to the WHO categories of visual impairment and blindness in children with errors of inclusion and exclusion in the schools for the blind

BCVA* in the better eye	Error of inclusion (Children with no vision disability (BCVA of ≥6/24 in the better eye) enrolled in schools for the blind n=23					Error of exclusion (Children with vision disability (BCVA of ≤6/24 in the better eye) not enrolled in schools for the blind n=78
	<11 years		>11 years		Total	<11 years		>11 years		Total
	Male	Female	Male	Female		Male	Female	Male	Female
6/6-6/18	2	1	11	5	19	0	0	0	0	0
6/24	1	0	2	1	4	-	-	-	-	-
<6/18-6/60	0	0	0	0	0	13	10	16	14	53 (67.95%)
<6/60-3/60	0	0	0	0	0	1	6	4	0	11 (14.10%)#
<3/60-PL	0	0	0	0	0	4	1	5	4	14 (17.95%)#
No PL	0	0	0	0	0	0	0	0	0	0
Total					23					78

*Best-corrected visual acuity. Three children in the category with BCVA 6/6-6/18, had 6/6 in OU. All three had high refractive errors. One child had 6/18 BCVA in OU and had oculocutaneous albinism. ^#32.05% of the children with a BCVA of ≤6/24 in the better eye, in normal schools, had a BCVA of <6/60 in the better eye