Effect size* of individual questions in the VF-14
| Preoperative | 4 months | |||
|---|---|---|---|---|
| Function | Mean (SD) | Mean (SD) | Change | Effect size |
| *Effect size is the mean change in the value divided by the standard deviation of values at baseline. | ||||
| Reading small print | 1.89 (1.33) | 3.22 (1.15) | 1.33 | 1.00 |
| Reading the newspaper | 2.59 (1.34) | 3.74 (0.77) | 1.15 | 0.86 |
| Reading large print | 3.78 (0.77) | 3.96 (0.34) | 0.18 | 0.23 |
| Recognising people | 3.81 (0.66) | 3.95 (0.46) | 0.14 | 0.21 |
| Seeing steps or curbs | 3.39 (1.38) | 3.84 (0.52) | 0.45 | 0.33 |
| Seeing signs | 3.12 (1.21) | 3.84 (0.60) | 0.72 | 0.60 |
| Doing fine handwork | 2.40 (1.47) | 3.74 (0.85) | 1.34 | 0.91 |
| Writing checks | 3.50 (1.04) | 3.92 (0.42) | 0.47 | 0.45 |
| Playing games | 3.59 (0.91) | 3.97 (0.26) | 0.38 | 0.42 |
| Playing sports | 3.38 (1.15) | 3.86 (0.84) | 0.48 | 0.42 |
| Cooking | 3.79 (0.68) | 3.97 (0.25) | 0.18 | 0.26 |
| Watching TV | 3.44 (0.95) | 3.93 (0.37) | 0.49 | 0.52 |
| Daytime driving | 3.11 (1.16) | 3.84 (0.63) | 0.73 | 0.63 |
| Night driving | 1.33 (1.40) | 2.35 (1.78) | 1.02 | 0.73 |