Retinal Vein Occlusion
Eye Care > Diseases of the Eye > Retinal Vein Occlusion
What is Retinal Vein Occlusion?
Retinal Vein Occulsion.
Signs and Symptoms
- Sudden onset
- Blurred ormissing area of vision (if a branch vein is involved)
- Severe loss ofcentral vision (if a central vein is involved)
Detection and Diagnosis
Vein occlusion is diagnosed by examining the retina with an ophthalmoscope. Fluorescein angiography may be performed in some cases to study the circulation of the retina and to determine the extent of macular oedema or swelling.
Following a vein occlusion, the primary concern is to treat the secondary complications.If areas of the retina are oxygen-deprived, LASER may be used to prevent growth of delicate vessels that could break, bleed or cause glaucoma.
The following are common risk factors for vein occlusion:
- Cardiovascular disease
Illustrations by Mark Erickson
With acknowledgement to St. Lukes Eye Hospital.