CN VI: abducens nerve

Question 1

what is the function of the abducens nerve?

Answer 1

innervates the lateral rectus (abducts the eye)

Question 2

how is the abducens nerve examined?

Answer 2

H-shaped pattern
look for diplopia or blurred vision

Question 3

what are the symptoms of abducens nerve palsy?

Answer 3

diplopia
pupil resting in adduction (unable to abduct the eye)

Question 4

what causes an abducens nerve palsy?

Answer 4

downwards pressure on the brainstem
diabetic neuropathy
thrombophlebitis