Retinal Artery Occlusion
A sudden blockage of an artery supplying the retina that can cause sudden vision loss and is a medical emergency.
What is it?
Retinal artery occlusion is a sudden blockage of an artery supplying the retina. It can cause sudden, painless vision loss in one eye and is considered a medical emergency.
Common symptoms
- Sudden painless vision loss in one eye
- Vision may appear grey or darkened
Risk factors
- Cardiovascular disease
- High blood pressure
- Diabetes
- High cholesterol
- Smoking
- Atrial fibrillation
Prevention tips
- Have comprehensive and regular eye examinations
- Maintain a healthy lifestyle with a balanced diet, regular exercise, and no smoking
- Seek urgent medical care for any sudden change in vision
Treatment overview
There is no highly effective proven treatment for central retinal artery occlusion. Emergency management aims to restore retinal blood flow. Measures may include ocular massage, anterior chamber paracentesis, and intraocular pressure-lowering medication, together with urgent cardiovascular assessment.
Seek urgent care if you notice
- Severe eye pain
Related eye care tips
Have questions about your eyes?
This information is general education and does not replace a professional eye examination. If you are worried about your eyes, book an appointment.