Retinal artery occlusion Flashcards
1
Q
Why is retinal artery occlusion result in permanent vision loss if not treated quick enough
A
Central retinal artery is an end-artery and has no collateral blood supply –> ischaemia would result
2
Q
Risk factors for retinal artery occlusion?
A
Atherosclerosis Diabetes Coagulopathy AF HTN
3
Q
What might you see on fundoscopy?
A
Cherry red spot
4
Q
What causes retinal artery occlusion?
A
Cocaine
GCA
Coagulopathy
5
Q
What tests can you to do rule out GCA?
A
ESR/CRP - raised
FBC - thrombocytosis
6
Q
What does USS of temporal arteries in GCA show?
A
Halo sign
