Ophthalmology · UKMLA & AKT
Central retinal vein occlusion
A free high-yield preview for the UKMLA Applied Knowledge Test, covering how to recognise this condition. The full SA Note notes add investigations, management and complications, with practice questions on this topic.
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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