Visual acuity (VA) before and after an intravitreal injection of triamcinolone acetonide
| Time of examination | n | Mean VA (SD) | Median | p Value* |
|---|---|---|---|---|
| *Significance of differences between the baseline before injection. NS, not significant. | ||||
| Baseline | 99 | 0.17 (0.13) | 0.20 | |
| 1 week | 71 | 0.15 (0.12) | 0.10 | 0.92 (NS) |
| 1 month | 85 | 0.20 (0.16) | 0.16 | 0.08 (NS) |
| 2 months | 68 | 0.19 (0.15) | 0.16 | 0.34 (NS) |
| 3 months | 66 | 0.19 (0.17) | 0.45 | 0.52 (NS) |
| 4 months | 54 | 0.18 (0.15) | 0.13 | 0.74 (NS) |
| 5 months | 38 | 0.17 (0.15) | 0.13 | 0.37 (NS) |
| 6 months | 34 | 0.16 (0.14) | 0.10 | 0.16 (NS) |
| 7 months | 27 | 0.10 (0.11) | 0.06 | 0.01 |
| 8 months | 20 | 0.14 (0.13) | 0.08 | 0.004 |
| 9 months | 15 | 0.12 (0.11) | 0.08 | 0.04 |
| 10 months | 7 | 0.06 (0.03) | 0.05 | 0.18 (NS) |
| 11 months | 16 | 0.12 (0.09) | 0.08 | 0.02 |
| After injection | ||||
| Maximum | 99 | 0.22 (0.17) | 0.16 | <0.001 |
| Maximum gain in Snellen lines | 99 | |||