Neuro-Ophthalmic Disease

Question 1

What are the cardinal features of neuro-ophthalmic disease?

Answer 1

Double vision
Visual acuity
Field loss

Question 2

What is the main cause of neuro-ophthalmic disease?

Answer 2

Vascular disease

Question 3

What cranial nerves are affected in ocular motility defects?

Answer 3

Oculomotor
Trochlear
Abducens

Question 4

A palsy of the abducens nerve affects which muscle?

Answer 4

Lateral rectus

Question 5

The eye cannot make what movement in a CN VI palsy?

Answer 5

Abduction

Question 6

What is an important sign of CN VI palsy?

Answer 6

Papilloedema

Question 7

A palsy of the trochlear nerve affects which muscle?

Answer 7

Superior oblique

Question 8

The eye cannot make what movements in a CN IV palsy?

Answer 8

Intorsion

Depression in adduction

Question 9

How does someone with a unilateral CN IV palsy commonly compensate?

Answer 9

Head tilt

Question 10

Where does the eye look in a CN III palsy?

Answer 10

‘Down and out’

Question 11

If the CN III palsy is painful what should be suspected?

Answer 11

Posterior communicating artery aneurysm

Question 12

Give some causes of optic nerve pathology

Answer 12

Ischaemic optic neuropathy
Optic neuritis
Tumours

Question 13

Optic neuritis causes painful/painless eye movements

Answer 13

Painful

Question 14

A tumour from what structure can compress the optic chiasm?

Answer 14

Pituitary

Question 15

Compression of the optic chiasm causes what visual defect?

Answer 15

Bitemporal hemaniopia

Question 16

Lesions in the optic tract cause visual defects in the same/different visual fields

Answer 16

Different

Question 17

A lesion in the occipital cortex spares what structure?

Answer 17

Macula