Complications at surgery | Age group | No of eyes | No (%) with postoperative visual acuity ⩾6/12 | p value (test of trend) |
---|---|---|---|---|
Absent | 60–69 | 201 | 196 (97.5) | <0.001 |
70–79 | 279 | 266 (95.3) | ||
80+ | 196 | 174 (88.8) | ||
Subtotal | 676 | |||
Present | 60–69 | 13 | 12 (92.3) | 0.3 |
70–79 | 27 | 20 (74.1) | ||
80+ | 26 | 19 (73.1) | ||
Subtotal | 66 | |||
Overall stratified test of trend | <0.001 |