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Retinal vein occlusion (aetiology (thrombosis, branch occlusions often at…
Retinal vein occlusion
occlusion of retinal vein - central or tributary
aetiology
thrombosis
branch occlusions often at AV crossing points
pathophysiology
clotting tendency
hyperviscosity states
smoking
OCP
pregnancy
vessel wall inflammation
sarcoidosis
SLE
polyarteritis nodosa
behcet's disease
incidence
common serious opthalmic condition
clinical
signs
may be RAPD
reduced visual acuity 6/9 --> hand movements
flame/dot/blot haemorrhages
cotton wool spots
swollen optic disc
macular oedema
in branch occlusion, changes confined to area affected
symptoms
middle-aged/elderly
sudden painless loss of vision
complications
disease
iris neovascularisation
glaucoma
macular oedema
diagnosis
clinical - fundus examination
ancillary
treatment
medical
laser - oedema and neovascularisation (glaucoma)
glaucoma eye drops
surgical
prognosis
disease
glaucoma
chronic pain
removal of eye