Neuro-Opthalmic Disease

Question 1

what eye movement defect indicates neuro-opthamic disease?

Answer 1

double vision

Question 2

what visual defects suggest neuro-opthalmic disease?

Answer 2

problems with visual acuity

visual field loss

Question 3

main cause of neuro-opthalmic disease?

Answer 3

vascular disease

Question 4

what kind of tumour causes neuro-opthalmic disease?

Answer 4

SOL (Space occupying lesion)

Question 5

investigations for suspected neuro-opthalmic disease?

Answer 5

blood tests

MRI scanning

Question 6

what nerve palsies affect ocular motility?

Answer 6

3
4
6

Question 7

main function of lateral rectus muscle?

Answer 7

abduction

Question 8

causes of CN6 palsy?

Answer 8

microvascular
raised ICP
tumour
congenital

Question 9

main functions of superior oblique muscle?

Answer 9

intorsion
depression in adduction
abduction

Question 10

what unilateral nerve palsy can present with the patient tilting their head?

Answer 10

4th nerve

Question 11

main cause of bilateral 4th nerve palsy?

Answer 11

blunt head trauma

Question 12

causes of 3rd nerve palsy?

Answer 12

microvascular
tumour
aneurysm
MS
congenital

Question 13

patient with suspected 3rd nerve palsy who is in alot of pain?

Answer 13

aneurysm until proven otherwise

Question 14

why do eyes move in sync with each other?

Answer 14

internuclear pathways

Question 15

what does the medial longitudinal fasciculus do?

Answer 15

links the 3 main nerves in charge of moving the eye

Question 16

causes of internuclear opthalmoplegia?

Answer 16

MS

vascular

Question 17

main cause of demyelination in neuro-opthalmic disease

Answer 17

MS

Question 18

what vascular problem most commonly causes visual field defects?

Answer 18

stroke

Question 19

first relay centre reached by the optic nerve?

Answer 19

lateral geniculate bodies

Question 20

where are the lateral geniculate bodies located

Answer 20

thalamus

Question 21

what is the optic radiation?

Answer 21

group of axons that connect the neurons from the lateral geniculate bodies to the primary visual cortex

Question 22

bilateral temporal hemianopia is a defect caused by which part of the visual pathway?

Answer 22

optic chiasm

Question 23

if one eye was blind and the other was fine, where would the defect in the visual field be?

Answer 23

optic nerves before they reach the optic chiasm

Question 24

what vision type would a defect in the lateral geniculate bodies present with?

Answer 24

can only see out of the nasal 1/4 of one eye

can only see out of the temporal 3/4 of one eye

Question 25

most common cause of optic neuritis?

Answer 25

MS

Question 26

what effect would an optic nerve defect have on your visual field?

Answer 26

complete visual loss

can only see upper/lower half of eye

Question 27

progressive unilateral visual loss?

Answer 27

optic neuritis

Question 28

where is pain felt in optic neuritis?

Answer 28

behind eye on movement

Question 29

main tumour causes of an optic chiasm defect?

Answer 29

craniopharyngioma
meningioma
pituitary tumour

Question 30

visual loss is regained after surgery of a causative pituitary tumour T or F

Answer 30

T

Question 31

the macula is not spared in optic tract/radiation defects T or F

Answer 31

T

Question 32

main causes of defects in the occipital cortex?

Answer 32

vascular disease eg stroke

demyelination

Question 33

the macula is not spared in occipital cortex defects T or F

Answer 33

F