Pretreatment phase visual performance (Student’s t test): start pretreatment scores versus optimum recorded during this phase. For visual acuity a positive mean difference indicates improvement; for contrast sensitivity improvement is indicated by a negative mean difference
| Visual performance measure | Eye | Mean difference | SD | p Value | 95% CI | |
|---|---|---|---|---|---|---|
| Visual acuity | Amblyopic | 0.19 | 0.147 | 0.008 | (0.07, 0.32) | |
| Fellow | 0.19 | 0.195 | 0.03 | (0.03, 0.36) | ||
| Contrast sensitivity | Amblyopic | −0.09 | 0.082 | 0.01 | (−0.16, −0.03) | |
| Fellow | −0.11 | 0.105 | 0.02 | (−0.19, −0.02) | ||