CRVO

Question 0

3 symptoms of CRVO?

Answer 0

1. Painless
2. Monocoluar
3. Gradual/sudden visual loss

Question 1

6 predisposing factors CRVO?

Answer 1

1. Arterosclerotic vascular disease
2. Hypertension
3. Diabetes Mellitus
4. Glaucoma
5. Hyperviscosity: PRV, lymphoma, leukemia
6. Drugs: OCP, direutics

Question 2

Sign of CRVO?

Answer 2

1. +/- RAPD
2. Intraretinal hemorrhage
3. Cotton wool spot
4. Dilated/torturous vessel
5. Swollen optic disc
6. Macular edema

Question 3

Ischemic CRVO? Sign?

Answer 3

Extensive blockage (extensive area of capillary non perfusion

Sign

1. +ve RAPD
2. Very poor vision
3. New vessel formation: vitreous hemorrhage, rubeosis, TRD
4. More hemorrhage, CWS, congestion

Question 4

Non-ischemic CRVO? Sign?

Answer 4

Partial blockage (minimal area of no perfusion

Sign

1. No RAPD
2. Good vision
3. No new vessel

Question 5

4 complication?

Answer 5

1. Degeneration of RPE
2. Neovascularization of retina and iris
   And lead to 2* glaucoma
3. Vitreous hemorrhage
4. Maclar edema

Question 6

Treatment CRVO?

Answer 6

1. Retinal laser photocoagulation/anti VEGF injection to reduce retinal or iris neovasularization and prevent neovascular glaucoma
2. Macular grid laser photocoagulation for macular edema tratment