Distribution of presenting and best corrected visual acuity in better eye
| Age group (years) | Presenting visual acuity | Best corrected visual acuity | ||||
|---|---|---|---|---|---|---|
| >6/18 | 6/18 to 3/60 | ⩽3/60 | > 6/18 | 6/18 to 3/60 | ⩽3/60 | |
| 40–49 | 1491 (65.6%) | 93 (10.34%) | 90 (12%) | 1541 (43.6%) | 31 (11.5%) | 14 (10.6%) |
| 50–59 | 675 (29.7%) | 214 (23.8%) | 191 (25.37%) | 897 (25.5%) | 71 (26.3%) | 17 (12.88%) |
| 60–69 | 245 (10.8%) | 332 (36.9%) | 298 (39.58%) | 740 (21.0%) | 106 (39.3%) | 47 (35.60%) |
| 70–79 | 50 (2.2%) | 177 (19.7%) | 152 (20.2%) | 309 (8.8%) | 52 (19.3%) | 43 (32.57%) |
| ⩾80 | 1 (0.04%) | 27 (3.0%) | 22 (2.92%) | 36 (1.0%) | 10 (3.7%) | 11 (8.33%) |
| Total 3924 | 2272 (57.9%) | 899 (22.91%) | 753 (19.19%) | 3522 (89.75%) | 270 (6.88%) | 132 (3.36%) |