Arterial Occlusive Disease Flashcards
1
Q
Most common cause of retinal artery occlusions
A
atherosclerosis
2
Q
Central Retinal Artery Occlusion
A
due to thrombus formation at lamina cribosa
causes ischemic retinal whitening and irreversible damage to retina w/in hours
3
Q
Symptoms of CRAO
A
painless, sudden loss of vision
4
Q
Preserves central vision during CRAO
A
cilioretinal artery
5
Q
Signs of CRAO
A
cherry red macula
segmented blood flow (box car)
6
Q
Risk factors for CRAO
A
hypertension
diabetes
carotid and coronary artery occlusion
7
Q
Symptoms of Branch Retinal Artery Occlusion
A
sudden painless loss of peripheral vision
may not be noticed
8
Q
Signs of BRAO
A
opacification of retina
sometimes visible embolus
