CRAO

Question 0

4 Symptoms of CRAO?

Answer 0

1. Sudden reduce of vision
2. Painless
3. History if amaurosis fugax
4. Monocular loss of vision

Question 1

Definition of CRAO?

Answer 1

Sudden persistent visual loss caused by embolus/emboli from heart or carotid artery

Question 2

Sign of CRAO?

Answer 2

1. RAPD positive
2. Cherry red spot at fovea
3. Retinal pallor
4. Attenuation of artery
5. Embolus in retinal vessel

Question 3

Management CRAO?

Answer 3

1. Hyperventilate the patient- CO2 95%
2. Digital ocular massage
3. IV acetazolamide (decrease IOP)
4. Investigate the cause
5. Treat underlying cause to prevent CRAO in other eye

Question 4

6 risk factors of CRAO?

Answer 4

1. Age more than 70y/o
2. Atherosclerosis
3. High cholesterol level
4. Hypertension
5. Arteritis
6. Young: CTD, Cardiac valcular disease