5 - Opth - Acute loss of vision - Anterior Ischaemic Optic Neuropathy (AION) Flashcards

1
Q

What happens

A

optic nerve blood supply is compromised - (posterior ciliary artery)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Arteritic AION - cased by? what is it?

A

giant cell arteritis (also temporal/cranial arteritis)

immune mediated vasculitis of medium and large vessels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Arteritis AION presentation (EYES)

A

decreased VA, RAPD, Diplopia, Optic disc swelling/atrophy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Systemic Sx of arteritis

A

malaise, wt loss, myalgia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Arteritic AION presentation (non eye)

A

jaw claudication
tender scalp
temporal headache
abnormal temporal artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Investigation for Arteritic AION

A

CRP/ESR raised,

temporal artery biopsy, (high false -ve due to skip lesions)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

MGMT of arteritic AION

A

oral prednisolone

may take >1y to settle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

NON-arteritic AION - causes/associations

A

eg atherosclerosis/thromboembolism (ass w HTN, smoking, Dm ,high lipids) , Hypotension

How well did you know this?
1
Not at all
2
3
4
5
Perfectly