Retinal Vein Occlusion Diagnosis and Treatment in Sydney
Retinal vein occlusion is a serious eye condition that occurs when a vein in the retina becomes blocked, disrupting normal blood flow. This blockage can lead to bleeding, swelling and reduced oxygen supply to the retina, resulting in vision loss. At Sydney Retina Clinic & Day Surgery, our experienced ophthalmologists and vitreoretinal specialists provide prompt diagnosis and personalised treatment for retinal vein occlusion. Early intervention is essential to protect vision and reduce the risk of long-term complications.
Retinal vein occlusion can affect people suddenly and may occur without warning. Access to advanced diagnostics and on-site day surgery allows our team to deliver timely and effective care for patients across Greater Sydney.
What is Retinal Vein Occlusion, and How Does it Affect Vision?
Retinal vein occlusion occurs when one of the veins that drain blood from the retina becomes blocked. This blockage causes pressure to build up in the retinal blood vessels, leading to leakage of fluid or blood into the retina. As a result, vision may become blurred or distorted, particularly if the macula is affected. Peripheral vision may also be impacted depending on the severity and location of the blockage.
There are two main types of retinal vein occlusion, which differ in severity and treatment approach.
Types of Retinal Vein Occlusion
Central retinal vein occlusion affects the main retinal vein and often causes widespread retinal swelling and vision loss. Branch retinal vein occlusion occurs when a smaller branch vein is blocked, usually affecting a specific area of the retina. Vision loss may be milder in branch retinal vein occlusion but can still be significant if the macula is involved. Identifying the type of retinal vein occlusion helps guide appropriate treatment and monitoring.
Both types require specialist assessment to reduce the risk of complications.
Common Symptoms of Retinal Vein Occlusion
Symptoms of retinal vein occlusion often develop suddenly and may affect one eye. Blurred or reduced vision is a common early sign. Some patients notice dark spots, floaters or areas of missing vision. In more severe cases, vision loss may occur rapidly and requires urgent specialist care.
Pain is uncommon, which means vision changes should never be ignored.
Causes and Risk Factors for Retinal Vein Occlusion
Retinal vein occlusion is commonly associated with underlying health conditions that affect blood vessels. High blood pressure is one of the most significant risk factors. Diabetes and high cholesterol also increase the likelihood of developing this condition. Other risk factors include glaucoma, smoking and cardiovascular disease.
The risk of retinal vein occlusion increases with age, particularly in people over 50.
Retinal Vein Occlusion Diagnosis and Retinal Imaging
Diagnosis involves a comprehensive eye examination and detailed retinal imaging. Advanced scans allow specialists to assess the extent of retinal swelling, bleeding and reduced blood flow. These tests help determine whether the macula is affected and guide treatment decisions. Early diagnosis allows treatment to begin before permanent damage occurs.
Ongoing monitoring is essential to track changes and response to treatment.
Retinal Vein Occlusion Treatment Options
Treatment for retinal vein occlusion focuses on reducing retinal swelling and preventing further vision loss. Intravitreal injections are commonly used to reduce fluid leakage and improve vision. Laser treatment may be recommended in some cases to reduce abnormal blood vessel growth and complications. Managing underlying health conditions is also critical in reducing the risk of progression or recurrence.
Treatment plans are tailored to each patient based on the type and severity of the condition.
Vision Outcomes After Retinal Vein Occlusion
Visual outcomes vary depending on how quickly treatment begins and whether the macula is affected. Some patients experience significant improvement with treatment, while others may have ongoing vision impairment. Early diagnosis and regular monitoring improve the likelihood of stabilising vision. Managing systemic health conditions plays an important role in long-term outcomes.
Permanent vision loss can occur in severe or untreated cases.
Retinal Vein Occlusion Frequently Asked Questions
Is retinal vein occlusion the same as a stroke in the eye?
It is often described this way, as it involves a blockage of blood flow, but the underlying mechanisms differ from a brain stroke.
Can retinal vein occlusion affect both eyes?
It usually affects one eye, but underlying risk factors may increase the chance of it occurring in the other eye.
Will my vision return to normal after treatment?
Some patients experience significant improvement, but vision may not fully return to normal depending on the severity.
Is retinal vein occlusion preventable?
Managing blood pressure, diabetes and cholesterol can help reduce risk, but it cannot always be prevented.
If you experience sudden vision changes or have been diagnosed with retinal vein occlusion, contact 02 9221 3755 to book an urgent assessment with our retinal specialists.
