BRVO AND CRAO Flashcards
CRVO clinical characteristics
dilated tortuous veins
extensive blot haemorrhages that are worse centrally than peripherally
micrinfarcts
macular oedema
disc oedema and hyperaemiah
how to establish presence of extensive retinal non perfusion
RAPD
extensive blot hamehorrhaes
fluroscein angiography
What is rubeosis
neovascualraistion of the iris
(abnormal blood vessel growth)c
causes of rubeossi
diabetic retinopathy
CRVO
Choroidal melanoma
Retinal detachment
chronic uveitis
ocular iscahemia
ischaemic CRVO
irregular dilated tortuous veins
few blot haemorrhages
pale disc (swollen hyperaemic)
non ischameic CRVO characteristics
severe disc hyperaemia
dilated tortuous veins
scattered blot hamehorrhgaes
retinal dema
differential diagnosis of CRVO
diabetic retinopathy
retinal vasculitis
autoimmune diseases - systemic lupus erythmastosus
ocular ischameia
complications of CRVO
virtuous hamehorrhage
Clio-retinal artery occlusion
treatment of CRVO
no effective treatment can do antiinfalmmatories
steroids , laser photocoagulation
may resolve spontaneously or progress to permeant vision loss
observe development of rubeoosis
what is HVO
hemisphere vein occclusion
angiography
radiographic imaging of blood vessels
clinical signs before angiography should be used
macular retinal thickening
extensive non perfusion
its suggested by RAPD
extensive micrinfarcts
extensive deep blot haemorrhages
extensive vascular sheathing ]
angiographic signs of BRAO
masking
macular leakage
foveal non perfusion
leaking veins
non leaking arteries
treatment for BRAO
laser photocoagulation
intravirteal triamiclone
diagnosis of BRVO
hemisphere vein occlusion
diabetic retinopathy
