Table 1.
Extraocular muscle contractility during vertical fusional vergence
| Prism Viewing Eye |
Contraprism Viewing Eye |
|||
|---|---|---|---|---|
| Muscle Compartment | Contractility | Expected Effect | Contractility | Expected Effect |
| Inferior oblique (whole muscle) | Contraction | Excycloduction, supraduction | — | — |
| Inferior rectus lateral | — | — | — | — |
| Inferior rectus medial | Contraction | Infraduction | Relaxation | Supraduction |
| Lateral rectus inferior | — | — | — | — |
| Lateral rectus superior | Contraction | Abduction, supraduction | — | — |
| Medial rectus inferior | — | — | — | — |
| Medial rectus superior | — | — | — | — |
| Superior oblique lateral | — | — | Contraction | Infraduction |
| Superior oblique medial | Relaxation | Excycloduction | — | — |
| Superior rectus (whole muscle) | — | — | — | — |
—, No change.