Presenting visual acuity in better eye in patients with any visually significant cataract, by age and gender, in Theni population (n=923)*
| Age, years | Sample size | Sample size with complete data | Presenting visual acuity in better eye % (n) | ||||
| No VI | Mild VI | Moderate VI | Severe VI | Blindness | |||
| ≥6/12 | ≥6/18 to <6/12 | ≥6/60 to <6/18 | ≥3/60 to <6/60 | <3/60 | |||
| 40–49 | 2602 | 2601 | 1.23 (32) | 0.27 (7) | 1.11 (29) | 0.08 (2) | 0.08 (2) |
| 50–59 | 1999 | 1983 | 2.77 (55) | 1.51 (30) | 5.65 (112) | 0.20 (4) | 0.10 (2) |
| 60–69 | 1584 | 1569 | 5.10 (80) | 2.55 (40) | 13.26 (208) | 0.32 (5) | 0.51 (8) |
| 70–79 | 755 | 744 | 4.44 (33) | 3.36 (25) | 21.64 (161) | 1.08 (8) | 1.08 (8) |
| 80 and over | 187 | 184 | 8.15 (15) | 2.72 (5) | 21.74 (40) | 1.09 (2) | 2.17 (4) |
| Gender | |||||||
| Male | 3004 | 2981 | 3.52 (105) | 1.44 (43) | 6.81 (203) | 0.20 (6) | 0.23 (7) |
| Female | 4123 | 4094 | 2.69 (110) | 1.56 (64) | 8.48 (347) | 0.37 (15) | 0.42 (17) |
| Total | 7127 | 7075 | 3.04 (215) | 1.51 (107) | 7.77 (550) | 0.30 (21) | 0.34 (24) |
*Of the 923 participants, 6 had missing data on PVABE. Therefore, the number of participants in parentheses in the last row of the table sums to 917.
PVABE, presenting visual acuity in the better eye; VI, visual impairment.