Table 2 Distribution by visual acuity with available correction in the better eye in adults aged ⩾50 years.
| VA with available correction | Men (n = 2160) | Women (n = 2708) | Total (n = 4868) | |||
|---|---|---|---|---|---|---|
| n | Prevalence (%, 95% CI) | n | Prevalence (%, 95% CI) | n | Prevalence (%, 95% CI) | |
| VA <3/60 | ||||||
| Bilateral blindness | 61 | 2.8 (2.2 to 3.5) | 82 | 3.0 (2.3 to 3.8) | 143 | 2.9 (2.4 to 3.5) |
| Blind eyes | 270 | 6.3 (5.4 to 7.1) | 349 | 6.4 (5.6 to 7.3) | 619 | 6.4 (5.7 to 7.0) |
| VA between <6/60 and ⩾3/60 | ||||||
| Bilateral severe visual impairment | 31 | 1.4 (0.9 to 2.0) | 47 | 1.7 (1.2 to 2.3) | 78 | 1.6 (1.2 to 2.0) |
| Severe visually impaired eyes | 110 | 2.6 (2.0 to 3.1) | 135 | 2.5 (2.0 to 3.0) | 245 | 2.5 (2.1 to 2.9) |
| VA between <6/18 and ⩾6/60 | ||||||
| Bilateral visual impairment | 193 | 8.9 (7.7 to 10.2) | 215 | 7.9 (6.9 to 9.0) | 408 | 8.4 (7.5 to 9.3) |
| Visually impaired eyes | 510 | 11.8 (10.5 to 13.1) | 538 | 9.9 (8.9 to 11.0) | 1048 | 10.8 (9.9 to 11.6) |
| Bilateral aphakia | 21 | 1.0 (0.5 to 1.4) | 27 | 1.0 (0.6 to 1.4) | 48 | 1.0 (0.7 to 1.3) |
| Unilateral aphakia | 52 | 2.4 (1.8 to 3.0) | 79 | 2.9 (2.3 to 3.5) | 131 | 2.7 (2.2 to 3.1) |
| Aphakic eyes | 94 | 2.2 (1.6 to 2.7) | 133 | 2.5 (2.0 to 3.0) | 227 | 2.3 (2.0 to 2.7) |
VA, visual acuity.