Medication over time
| Drops | Pre | 1 Day | 1 Week | 1 Month | 3 Months | 6 Months | 12 Months | 18 Months | 24 Months |
| Mean (medications) | 1.97 | 1.98 | 1.87 | 1.84 | 2.06 | 1.98 | 1.98 | 1.96 | 2.07 |
| 95% CI | 0.28 | 0.27 | 0.28 | 0.32 | 0.29 | 0.28 | 0.26 | 0.26 | 0.31 |
| Friedman | |||||||||
| p Value versus pre-treatment | Non-significant | Non-significant | Non-significant | Non-significant | Non-significant | Non-significant | Non-significant | Non-significant | |
| n | 56 | 54 | 54 | 44 | 49 | 55 | 55 | 53 | 41 |