Table 2.
Distribution of causes for visual impairment and blindness.
| Visual impairment (excluding blindness) | Blindness | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All (n = 481) | 60–69 years (n = 98) | 70 years or older (n = 383) | All (n = 44) | 60–69 years (n = 7) | 70 years or older (n = 37) | |||||||
| n | % | n | % | n | % | n | % | n | % | n | % | |
| Cataract | 205 | 42.6 | 36 | 36.7 | 169 | 44.1 | 32 | 72.7 | 4 | 57.1 | 28 | 75.7 |
| Uncorrected refractive error | 224 | 46.6 | 41 | 41.8 | 183 | 47.8 | 0 | 0 | 0 | 0 | 0 | 0 |
| Posterior segment disorders | 17 | 3.5 | 9 | 9.2 | 8 | 2.1 | 8 | 18.2 | 2 | 28.6 | 6 | 16.2 |
| Corneal opacity or pterygia | 31 | 6.4 | 16 | 16.3 | 15 | 3.9 | 0 | 0 | 0 | 0 | 0 | 0 |
| Cataract surgical complications | 4 | 0.8 | 0 | 0 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Absent globe | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 9.1 | 1 | 14.3 | 3 | 8.1 |