Neuro-ophthalmology Flashcards

1
Q

third nerve palsy (oculomotor)

A

down and out

often intialy fixed dilated pupil with no accomdation

ptosis

ophthalmoplegia (paralysed muscles of eye)

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2
Q

Causes of third nerve palsy (oculomotor)

A

GCA

DM

Posterior communicating artery aneurysm

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3
Q

foruth nerve pasly (trochlear)

A

diploplia (double vision)

downward and inward eye movement

commonest cause of vertical diploplia

patient tilts head away from lesion to compensate

neck hurts

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4
Q

causes of foruth nerve pasly (trochlear)

A

rare

commonly trauma

infarction 2ndry to HTN

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5
Q

sixth nerve palsy (abducent)

A

inability to look laterally

eye is deviated medially because of unopposed action of medial rectus

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6
Q

causes of sixth nerve palsy (abducent)

A

MS

pontine CVA

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