Partial Etas (η2) for interaction effects of the possible explanatory variables in mixed ANOVA models for threefold measurements during aphakia with OVD (N=30)
| Sphere | Cylinder | SE | J0 | J45 | |
|---|---|---|---|---|---|
| Test of within subjects (main effect of measurement and interaction effects) | |||||
| Repeated measures | 0.007 | 0.025 | 0.034 | 0.019 | 0.034 |
| Repeated measures* low spherical error | 0.028 | 0.011 | 0.022 | 0.009 | 0.005 |
| Repeated measures* high spherical error | 0.056 | – | 0.12 | – | – |
| Repeated measures* low vs high cylinder | – | 0.013 | – | – | – |
| Repeated measures* CDVA (<0.1/0.1–0.2/>0.2) | 0.021 | 0.045 | 0.066 | 0.04 | 0.013 |
| Repeated measures* age (≤59/60–69/≥70) | 0.048 | 0.084 | 0.018 | 0.081 | 0.025 |
Differences between repeated measurements could not be explained by varying refractive state, preoperative visual acuity or age.
Partial Eta squared is calculated as follows: effect/(effect+error);
*Describes the analysed interaction, low spherical error defined as −2 D to +2 D and high spherical error as ≤2D and >2D, low versus high cylinder defined as >−1.5 D and <−1.5 D, respectively, CDVA (logMAR). All reported results not significant.
ANOVA, analysis of variance; CDVA, corrected distance visual acuity; J0, J45, Jackson cross-cylinder at 0° and 45°; OVD, ophthalmic viscosurgical device; SE, spherical equivalent.