EOM Testing
Duction - ANS-Movement of one eye
Abduction - ANS-Horizontal movement of the eye away from the nose
Abbduction - ANS-Horizontal movement of the eye toward the nose
Supraduction and infraduction - ANS-elevation of the eye
Depression of the eye
EOM testing - ANS-Testing version system of eyes
Version eye movement - ANS-Conjugate eye movements
**"yoked"/agonist muscles = move the two eyes in same direction/speed
Hering's law - ANS-Agonist (yoked) muscles receive simultaneous innervation to move
eyes an equal amount in the same direction
(LR6SO4)3 - ANS-CN innervation
Dextroversion - ANS-Both eyes moving to the right
When the eye is fully abducted - ANS-Only rectus muscles can elevate/depress the eye
When the eye is fully adducted - ANS-Only oblique muscles can elevate/depress the
eye
see study guide - ANS-
Muscle weakness - ANS-May cause eye to deviate/turn
most apparent when you move eyes into primary field of action of that muscle
Slight muscle weakness - ANS-May not cause symptoms all the time
Only when looking in the primary field of action of involved eye muscle
Ex. Lateral rectus weakness = less noticeable when reading, more noticeable at
distance (converging when reading = using medial rectus)
Duction - ANS-Movement of one eye
Abduction - ANS-Horizontal movement of the eye away from the nose
Abbduction - ANS-Horizontal movement of the eye toward the nose
Supraduction and infraduction - ANS-elevation of the eye
Depression of the eye
EOM testing - ANS-Testing version system of eyes
Version eye movement - ANS-Conjugate eye movements
**"yoked"/agonist muscles = move the two eyes in same direction/speed
Hering's law - ANS-Agonist (yoked) muscles receive simultaneous innervation to move
eyes an equal amount in the same direction
(LR6SO4)3 - ANS-CN innervation
Dextroversion - ANS-Both eyes moving to the right
When the eye is fully abducted - ANS-Only rectus muscles can elevate/depress the eye
When the eye is fully adducted - ANS-Only oblique muscles can elevate/depress the
eye
see study guide - ANS-
Muscle weakness - ANS-May cause eye to deviate/turn
most apparent when you move eyes into primary field of action of that muscle
Slight muscle weakness - ANS-May not cause symptoms all the time
Only when looking in the primary field of action of involved eye muscle
Ex. Lateral rectus weakness = less noticeable when reading, more noticeable at
distance (converging when reading = using medial rectus)