Results of questionnaire—perceived benefit of operation in relation to improvement in preoperative symptoms, near vision, distance vision, function/activity, and visual field
| Worthwhile | Not worthwhile/ mixed feelings | p Value (χ2) | |
|---|---|---|---|
| Main problem(s) | 90% (36/40) | 17% (3/18) | 10−6 |
| Near vision | 87% (33/38) | 15% (3/20) | 10−6 |
| Distance vision | 90% (35/39) | 30% (6/20) | 10−5 |
| Function/activity | 79% (30/38) | 5% (1/19) | 10−6 |
| Visual field | 74% (26/35) | 6% (1/16) | 1.4×10−5 |
Demoninators vary owing to missing data.