CRAO/CRVO Flashcards
What are the characteristics of visual loss in CRAO and CRVO?
Unilateral, abrupt, and painless
When might visual loss occur in CRVO?
When the patient wakes up in the morning
What can the visual loss in CRVO range from?
Blurred vision to complete loss
What are the findings on funduscopy in CRVO?
Optic disc and diffuse retinal haemorrhages due to venous stasis oedema
This appearance is termed ‘blood and thunder’.
How does the fundus appear in CRVO compared to papilloedema?
The unaffected fundus appears normal
What is the immediate action indicated for CRAO?
Immediate referral to ophthalmology
Is there specific treatment available for CRVO?
No specific treatment available
How soon can a patient with CRVO be seen by ophthalmology?
Within a few days
What medical therapies can be used in the ED for CRAO?
Described medical therapies
These therapies have not been shown to be highly beneficial.
