Initial VA status | 1st VA mean | Last VA mean | Mean difference (SD)* | p Value (t test) |
---|---|---|---|---|
*Significant difference in mean VA change by initial VA status (p = 0.009, ANOVA). Good = VA 20/20 – 20/40. Fair = VA 20/50 – 20/100. Poor = VA 20/200 or worse. | ||||
Good (n = 7) | 0.00 | 0.12 | +0.12 (0.15) | 0.07 |
Fair (n = 38) | 0.16 | 0.26 | +0.11 (0.27) | 0.02 |
Poor (n = 50) | 0.58 | 0.56 | −0.02 (0.30) | 0.62 |
Overall (n = 95 eyes) | 0.37 | 0.41 | +0.04 (0.28) | 0.17 |