Professional
Technical
IVT
BRAO
Pronunciation: BRAY-oh
Also written as: BRAO — branch retinal artery occlusion
Branch retinal artery occlusion causing sectoral visual field defects.
Full Definition
Branch retinal artery occlusion, a vascular emergency affecting a tributary of the central retinal artery. Results in acute, painless vision loss in a specific sector corresponding to the occluded arterial territory. Causes include embolic disease, atherosclerosis, and inflammatory conditions. Fundoscopic examination reveals retinal whitening in the affected area. Requires immediate evaluation for underlying cardiovascular risk factors and potential carotid disease.
Usage
Usage note: Always capitalize; distinguish from BRVO (branch retinal vein occlusion).
In Context
- "Fundoscopy confirmed inferior BRAO with corresponding superior altitudinal field defect." — Emergency department consultation
- "The patient's BRAO was likely embolic given the recent atrial fibrillation diagnosis." — Retinal specialist report
Also known as
branch retinal artery occlusion
Contrasted with
BRVO
Don't confuse with
CRAO
BRVO
CRVO