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

CP2 > 5 - Opth - Acute loss of vision - Anterior Ischaemic Optic Neuropathy (AION) > Flashcards

Flashcards in 5 - Opth - Acute loss of vision - Anterior Ischaemic Optic Neuropathy (AION) Deck (8):
1

What happens

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

2

Arteritic AION - cased by? what is it?

giant cell arteritis (also temporal/cranial arteritis)

immune mediated vasculitis of medium and large vessels

3

Arteritis AION presentation (EYES)

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

4

Systemic Sx of arteritis

malaise, wt loss, myalgia

5

Arteritic AION presentation (non eye)

jaw claudication
tender scalp
temporal headache
abnormal temporal artery

6

Investigation for Arteritic AION

CRP/ESR raised,
temporal artery biopsy, (high false -ve due to skip lesions)

7

MGMT of arteritic AION

oral prednisolone
may take >1y to settle

8

NON-arteritic AION - causes/associations

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

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