Central Retinal Vein Occlusion

Question 1

How can you tell the difference between central retinal artery occlusion and central retinal vein occlusion, and what features are seen? (2)

Answer 1

Fundoscopy

Tortuosity and dilation of central retinal vein seen in CRVO

Dot and blot haemorrhages seen in CRVO

Question 2

Investigations for central retinal vein occlusion (3)

Answer 2

Bloods

Fundus fluorescein angiography

Optical coherence tomography

Question 3

Treatment of central retinal vein occlusion

Answer 3

Neovascularisation