Action of Extraocular Muscles from Primary Position
| Muscle | Primary | Secondary | Tertiary |
| Medial Rectus | Adduction | -- | -- |
| Lateral Rectus | Abduction | -- | -- |
| Inferior Rectus | Depression | Extorsion | Adduction |
| Superior Rectus | Elevation | Intorsion | Adduction |
| Inferior Oblique | Extorsion | Elevation | Abduction |
| Superior Oblique | Intorsion | Depression | Abduction |