Cranial nerve palsies Flashcards Preview

Ophthalmology SOH > Cranial nerve palsies > Flashcards

Flashcards in Cranial nerve palsies Deck (15):
1

Third nerve palsy - muscles affected

SR
IR
MR
IO
LPS
Sphincter papillae

2

Third nerve palsy - eye position

LR still works so eye will be abducted
SO still works so eye will look down
ie: downward, outward gaze

3

Third nerve palsy - associated features

Ptosis - eyelid drooping
Dilated pupils

4

Third nerve palsy - causes

Microvascular
Tumour
Aneurysm
MS
Congenital

5

Third nerve palsy - pain

aneurysm

6

Fourth nerve palsy - muscle affected

Superior oblique

7

Fourth nerve palsy - what movement can eye not do

Can't look in and down

8

Fourth nerve palsy - eye position

Affected eye will be slightly raised compared to the normal functioning eye

9

Fourth nerve palsy - associated features

Head tilt
Vertical diplopia

10

Fourth nerve palsy - causes

Congenital
Microvascular
Tumour
Bilateral - closed head trauma

11

Sixth nerve palsy - muscle affected

Lateral rectus

12

Sixth nerve palsy - what movement can eye not do

Abduction

13

Sixth nerve palsy - eye position

Medial deviation of the eye

14

Sixth nerve palsy - associated features

Distance double vision

15

Sixth nerve palsy - causes

Microvascular
Raised intracranial pressure
- can result in papilloedema
Tumour
Congenital