Central Retinal Vein Occlusion Flashcards
What is Central retinal vein occlusion a differential for?
Sudden painless loss of vision.
How does
Central Retinal Vein Occlusion
occur?
A blood clot forms in the retinal veins and blocks the drainage of blood from the retina.
What does blockage of the retinal vein cause?
Pooling of blood in the retina
What does pooling of blood in the retina result in?
Leakage of fluid and blood causing macular oedema and retinal haemorrhages
What are the potential risk factors for
Central Retinal Vein Occlusion?
- increasing age
- hypertension
- cardiovascular disease
- glaucoma
- polycythaemia
- Systemic lupus erythematosus
Does Central Retinal Vein Occlusion usually present unilaterally or bilaterally?
Unilaterally
What can be seen on fundoscopy of
Central Retinal Vein Occlusion?
- Flame and blot haemorrhages
- Optic disc oedema
- Macula oedema
widespread hyperaemia
What is the stormy sunset finding?
Severe retinal haemorrhages
How does Central retinal vein occlusion typically present?
Sudden, painless reduction or loss of visual acuity
What other tests might you do in someone presenting with Central Retinal Vein Occlusion and why?
- FBC for leukaemia
- ESR for inflammatory disorders
- Blood pressure for hypertension
- Serum glucose for diabetes
What is hyperaemia?
Increased blood flow
How are people with central retinal vein occlusion usually managed?
Conservatively
What are indications for treatment in someone with central retinal vein occlusion?
macular oedema
Retinal neovascularisation
What is the management of macular oedema in someone with central retinal vein occlusion?
Intravitreal anti-vascular endothelial growth factor (VEGF) agents
What is the management of retinal neovascularisation in someone with central retinal vein occlusion?
laser photocoagulation
