Table 2.
Significant Main Effects
| Measure | Main effect | F value | p value |
|---|---|---|---|
| Line bisection | Group | F(2, 28) = 4.2 | <.05 |
| Position | F(5.9, 21) = 2.2 | <.05 | |
| Frequency | |||
| Doubling technology | Eye | F(1, 28) = 13.9 | <.001 |
| Optical coherence | |||
| Tomography | Eye | F(1, 27) = 5.33 | <.05 |
| Quadrant | F(3, 25) = 43.9 | <.001 |
Note. Eye = left eye, right eye. Group = left-body-onset Parkinson’s disease (LPD), normal control participants (NC); right-body-onset Parkinson’s disease (RPD). Position = location of presentation of stimuli at nine positions on a grid. Quadrant = inferior, superior, nasal, temporal quadrants of retinal nerve layer fiber thickness.