Retinal Vein Occlusion (RVO)

The retina is the structure in the eye that receives the incoming light and converts it to an electrical signal which is sent to the brain so we can see. Blood is supplied to the inner retina by the retinal arteries and is drained via the retinal veins. Sometimes the retinal veins can become blocked and this is called a retinal vein occlusion. This blockage stops the normal drainage of blood from the retina which can result in bleeding and swelling of the retina.

Types of retinal vein occlusions

Central retinal vein occlusion – refers to blockage of the main (or central) retinal vein.

Branch retinal vein occlusion – refers to blockage of one of the smaller/ branch retinal veins.

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Risk factors for retinal vein occlusion

  • Increasing age
  • High blood pressure
  • High cholesterol
  • Diabetes
  • Elevated intraocular pressure

Treatment of retinal vein occlusion

Retinal vein occlusions may be asymptomatic or you may notice a sudden change/ blurred vision.

Treatment of retinal vein occlusions include:

  • Control of underlying risk factors including high blood pressure and cholesterol.
  • Observation for development of complications.
  • Intravitreal therapies and/ or retinal laser if complications such as macular oedema or neovascularisation (the growth of new blood vessels) develop.

As with all eye procedures, there are risks associated with ophthalmic procedures, and these will be explained at the time of your consultation.  If you have any concerns regarding your eye after your procedure we recommend you contact the clinic to discuss your symptoms and arrange review. If you are unable to reach the clinic or one of our doctors, please attend your nearest Emergency Department for review.

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