Mean and median scores by group for logMAR, low contrast letter sensitivity, VF-14, and VQOL
| Group 1 | Group 2 | Group 3 | Group 4 | |
| logMAR | ||||
| Mean | 0.12 | –0.04 | –0.08 | 0.05 |
| Median | 0.12 | –0.03 | –0.10 | 0.02 |
| Contrast (range 0–2.25) | ||||
| Mean | 1.77 | 1.89 | 1.89 | 1.81 |
| Median | 1.80 | 1.95 | 1.95 | 1.80 |
| VF-14 (range 0–100) | ||||
| Mean | 83.90 | 94.70 | 97.02 | 89.84 |
| Median | 89.25 | 95.05 | 98.10 | 93.05 |
| VQOL (range 0–5) | ||||
| Mean | 1.31 | 0.44 | 0.42 | 0.79 |
| Median | 1.20 | 0.25 | 0.20 | 0.60 |