Prevalence of blindness
| Cause | Unilateral blindness | Bilateral blindness |
|---|---|---|
| Cataract (unoperated) | 23 (53%) | 5 (56%) |
| Glaucoma | 5 (12%) | 1 (11%) |
| Trauma | 4 (9%) | 0 |
| Cataract (operated) | 3 (7%) | 0 |
| Retinal degeneration | 3 (7%) | 0 |
| Diabetic retinopathy | 2 (5%) | 0 |
| Corneal disease | 2 (5%) | 0 |
| Phthisis/enucleation (unknown cause) | 0 | 3 (33%) |
| Unknown | 1 (2%) | 0 |
| Total | 43 (100%) | 9 (100%) |