Table 3.

Classification according to the anatomical site of lesion

Site of anomaly	Number of children with problems
	<11 years		>11 years		Total
	Male	Female	Male	Female
School for the blind (n=178)
Whole globe	10	2	15	10	37 (20.79%)
cornea	13	2	17	5	37 (20.79%)
lens	6	4	13	2	25 (14.04%)
uvea	1	0	2	0	3 (1.69%)
retina	9	6	17	10	42 (23.60%)
Optic nerve	13	1	27	10	51 (28.65%)
Refractive error	0	1	3	0	4 (2.25%)
(n=144) Number of children with blindness (BCVA* <3/60)
Whole globe	10	2	12	7	31 (21.53%)
cornea	12	2	14	5	33 (22.92%)
lens	4	4	9	1	18 (12.5%)
uvea	1	0	1	0	2 (1.39%)
retina	8	5	13	8	34 (23.61%)
Optic nerve	12	1	22	9	44 (30.56%)
Refractive error	0	0	0	0	0 (0%)
Low vision clinic (n=92)
Whole globe	1	3	0	1	5 (5.43%)
cornea	1	0	0	1	2 (2.17%)
lens	0	1	0	0	1 (1.09%)
uvea	0	1	2	1	4 (4.35%)
retina	18	13	31	17	79 (85.87%)
Optic nerve	0	0	0	1	1 (1.09%)
Refractive error	0	0	0	0	0 (0)

*Best-corrected visual acuity. The numbers do not add up because there are some children with more than one disease