Ophthalmology · UKMLA & AKT
Central retinal vein occlusion
A free high-yield preview for the UKMLA Applied Knowledge Test. Below are the key points to recognise central retinal vein occlusion — the full SA Note notes add investigations, management, complications and 10 practice questions.
Key high-yield points
- Sudden painless unilateral vision loss - onset over hours
- Classic fundoscopy: 'stormy sunset' - flame-shaped haemorrhages in all four quadrants, dilated and tortuous retinal veins, disc oedema, cotton wool spots, macular oedema
- RAPD - present in ischaemic CRVO
CRVO: haemorrhages in ALL four quadrants. Branch retinal vein occlusion (BRVO): identical changes confined to ONE quadrant only - key differentiating feature on fundoscopy.
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