Retinal vein occlusion Flashcards

1
Q

Retinal vein occlusion

A

Examine this patient’s fundi.

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2
Q

Clinical signs of Retinal vein occlusion

A
  1. Flame haemorrhages +++ radiating out from a swollen disc
  2. Engorged tortuous veins
  3. Cotton wool spots
  4. Cause: look for diabetic or hypertensive changes (visible in branch retinal vein occlusion).
  5. Effect: Rubeosis iridis (neovascularization of the iris) causes secondary glaucoma (in central retinal vein occlusion), visual loss or field defect.
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3
Q

Causes of Retinal vein occlusion

A
  1. Hypertension
  2. Hyperglycaemia: diabetes mellitus
  3. Hyperviscocity: Waldenström’s macroglobulinaemia or myeloma
  4. High intraocular pressure: glaucoma
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