Table 3.
Analysis of variance of mean spherical equivalent refractions
| Sum of squares | df | Mean square | F | P | |
|---|---|---|---|---|---|
| Master | |||||
| Between groups | 1.592 | 12 | 0.133 | 2.248 | 0.070 |
| Within groups | 0.885 | 15 | 0.059 | ||
| Total | 2.478 | 27 | |||
| Orange | |||||
| Between groups | 1.834 | 12 | 0.153 | 1.721 | 0.159 |
| Within groups | 1.332 | 15 | 0.089 | ||
| Total | 3.167 | 27 | |||
| Refraction | |||||
| Between groups | 2.632 | 12 | 0.219 | 2.257 | 0.069 |
| Within groups | 1.458 | 15 | 0.097 | ||
| Total | 4.090 | 27 | |||
Note: All P values were greater than 0.05, which shows that all three mean refractions had no statistically significant differences at the 5% level.
Abbreviations: df, degrees of freedom; F, one way analysis of variance; Master, IOLMaster®; Orange, ORange® Gen II; Refraction, 1-month postoperative manifest refraction.