kalibonite
Forum Junior
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In what directions would you asked the eye ball to be moved to test the competence of the extraocular muscles? - ALL OF THE EXTRAOCULAR MUSCLES.
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| meg
Forum Guru
Topics: 62
Posts: 806
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for a single eye,
Superior rectus- moves eye lateral and upward
Inferior rectus- moves eyeball lateral and downward
Superior oblique - moves eyeball medial and downward
Inferior oblique - moves eyeball medial and upward
Medial rectus- medial
Lateral rectus - lateral
So,
for testing:-
Superior rectus- ask patient to look upward and laterally
and so on for each muscle , ask them to perform that same function as the muscle.
So in III nerve palsy,
eye is going to be acted upon by superior oblique(IV) and lateral rectus (abducens), so eye is going to be looking lateral and downward.
In IV nerve palsy, if left superior oblique is affected, there is left head tilt, the left superior oblique is failing to look medial and downward, so the head is tilted to left. http://med-apos.bu.edu/lecture/crnerve/LSOpalsy.G...
In VI nerve, eyeball fails to move lateral.
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| asmi
Forum Hero
Topics: 1043
Posts: 4,609
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meg, iam unable to access that web link..
I remember it as SO4 and LR6.
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| meg
Forum Guru
Topics: 62
Posts: 806
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sorry, try this http://med-aapos.bu.edu/AAPOS/crnervepalsy.html
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| asmi
Forum Hero
Topics: 1043
Posts: 4,609
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thanks meg
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