Right eye muscle meters

Medial rectus (adduction)
50
Right eye: adduction (toward nose) → left gaze.
Lateral rectus (abduction)
50
Right eye: abduction (toward temple) → right gaze.
Superior rectus (elevates + adducts)
50
Primary: elevation. Secondary: adduction, intorsion.
Inferior rectus (depresses + adducts)
50
Primary: depression. Secondary: adduction, extorsion.
Superior oblique (depresses + abducts)
50
Primary: intorsion. Secondary: depression in adduction, abduction.
Inferior oblique (elevates + abducts)
50
Primary: extorsion. Secondary: elevation in adduction, abduction.

Right eye

Left eye

Conjugate gaze: Primary position

Left eye muscle meters

Medial rectus (adduction)
50
Left eye: adduction (toward nose) → right gaze.
Lateral rectus (abduction)
50
Left eye: abduction (toward temple) → left gaze.
Superior rectus (elevates + adducts)
50
Primary: elevation. Secondary: adduction, intorsion.
Inferior rectus (depresses + adducts)
50
Primary: depression. Secondary: adduction, extorsion.
Superior oblique (depresses + abducts)
50
Primary: intorsion. Secondary: depression in adduction, abduction.
Inferior oblique (elevates + abducts)
50
Primary: extorsion. Secondary: elevation in adduction, abduction.
created by micah etter, md