Benefit level | Item area | ||||
---|---|---|---|---|---|
1 Disability | 2 Cataract symptom | 3 Activity | 4 Car driving | 5 Off sick? | |
5 Very good | + | + | +/±0 | +/±0 | +/±0 |
4 Good | + | + | |||
3 Moderate | + | ||||
or | ±0 | + | |||
2 Questionable | ±0 | ||||
or | - | + | + | ||
1 No benefit | - |
In benefit level 5 an improvement of at least one of item areas 3, 4, or 5 is demanded. A conservation of a preoperative activity (= an activity ranking sum < 24 or being a car driver or not being “off sick”) is equal to an improvement in this benefit matrix.