What is it?

Central retinal artery occlusion (CRAO) refers to a situation when one of the vessels that carry blood to your eye’s retina gets blocked, it can cause you to lose your eyesight. This problem often happens suddenly and without any pain.

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Signs & symptoms

Usually, the signs of CRAO are:
- Sudden blindness in one of your eyes
- Sudden, complete blurring of eyesight in one eye
- In some cases it may be presented with steady loss of eyesight in one eye over a few weeks


If your healthcare provider suspects that you suffer from CRAO, he or she will do a physical exam of the eye. Your healthcare provider may also do a number of other eye tests to investigate the cause to your CRAO.


Your healthcare provider will provide your treatment based on the cause to CRAO, how severe the eyesight loss is, and your medical history. In some cases, your doctor may choose to remove the occlusion. To do so, He or she may use a clot-busting medicine, such as a tissue-plasminogen activator or t-PA. Alternatively, they may choose to remove a small amount of fluid from the front of the eye to attempt to restore the blood flow.

☝️ This is not a substitute for professional medical advice. Please consult with your physician before making any medical decision.

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