CRVO/CRAO

Question 1

what does the central retinal artery supply?

Answer 1

inner 2/3rd of eye

Question 2

symptoms of CRAO?

Answer 2

sudden visual loss
profound
painless

Question 3

signs of CRAO?

Answer 3

pupil defect
pale oedematous retina
cherry red macula

Question 4

treatment of CRAO?

Answer 4

if within 24hrs, ocular massage

establish source of clot e.g doppler

Question 5

symptoms of CRVO?

Answer 5

sudden visual loss - ranging from mod to sev

painless

Question 6

signs of CRVO?

Answer 6

dark retinal haemorrhage
dilated tortuous veins
disc and macula swelling
cotton wool spots
neovascularisation

Question 7

treatment of CRVO?

Answer 7

treat cause
monitor - complications may occur due to neovascularisation
anti VEGFS

Question 8

symptoms of BRVO?

Answer 8

may be asymp if macula is not affected

partial field loss

Question 9

symptoms of BRAO?

Answer 9

acute painless
partial visual loss
usually loss at bottom (blockage at top of eye)

Question 10

what is amaurosis fugax?

Answer 10

transient CRAO

Question 11

symptoms of amaurosis fugax?

Answer 11

transient painless visual loss
like a curtain
recovers fully after mins

Question 12

causes of amaurosis fugax?

Answer 12

carotid artery disease

migraine

Question 13

treatment of amaurosis fugax?

Answer 13

aspirin
massage
refer to TIA clinic

Question 14

causes of CRVO?

Answer 14

atherosclerosis
HT
increased IOP