Table 5.

Causes of blindness

Causes of blindness	Males		Females		All
	n	Male, %	n	Female, %	n	All, %
Principal causes of blindness in people: PVA <3/60 in better eye
Cataract	28	70.0	49	86.0	77	79.4
Non-trachomatous corneal opacity	2	5.0	0	0.0	2	2.1
Phthisis	0	0.0	2	3.5	2	2.1
Glaucoma	4	10.0	1	1.8	5	5.2
Posterior segment disease	5	12.5	1	1.8	6	6.2
Globe/CNS	1	2.5	4	7.0	5	5.2
Total	40	100	57	100	97	100

Abbreviations: CNS, central nervous system; n, number; PVA, presenting visual acuity.