Table 2.
Mean spherical equivalent increases and SD over 2 years in 6-month intervals. The pre-study annual increase is shown in the first column. Statistically significant results are marked with an asterisk.
| 12 months before | 6 months | 12 months | 18 months | 24 months | |
|---|---|---|---|---|---|
| Spherical equivalent changes (D) | |||||
| SRRG | −0.76 ± 0.27 | −0.06 ± 0.21 | −0.28 ± 0.38 | −0.39 ± 0.39 | −0.56 ± 0.51 |
| OK | −0.75 ± 0.25 | −0.16 ± 0.20 | −0.26 ± 0.44 | −0.32 ± 0.43 | −0.32 ± 0.53 |
| SV | −0.62 ± 0.25 | −0.27 ± 0.13 | −0.53 ± 0.25 | −0.80 ± 0.40 | −0.98 ± 0.58 |
|
| |||||
| Multiple comparisons contrast-P | |||||
| SV-SRRG | 0.660 | <0.0001∗ | 0.010∗ | 0.001∗ | 0.010∗ |
| SV-OK | 0.130 | 0.137 | <0.0001∗ | <0.010∗ | 0.030∗ |
| SRRG-OK | 0.550 | 0.092 | 0.163 | 0.790 | 0.965 |