Retinal Thrombosis

Retinal thrombosis is a blockage in the blood vessels that supply the retina, which can cause a sudden decrease in vision. Early detection is essential to prevent permanent damage.

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It mainly affects people over 50 with cardiovascular problems.

Central retinal vein thrombosis can cause severe vision loss within a matter of hours.

Early detection and prompt treatment can improve the visual prognosis.

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What is Retinal Thrombosis?

Retinal thrombosis occurs when a blood vessel in the retina becomes blocked, preventing blood from circulating properly. This causes swelling, haemorrhages and a reduced oxygen supply to the retina, affecting how it works.

Types of Retinal Thrombosis:

🔹 Central retinal vein occlusion (CRVO): Affects the main vein that drains blood from the retina, causing severe vision loss.

🔹 Branch retinal vein occlusion (BRVO): Blocks one of the secondary branches of the central vein, affecting only part of the visual field.

🔹Central retinal artery occlusion (CRAO): Blockage of the main artery, causing sudden and severe vision loss.

🔹Branch retinal artery occlusion (BRAO): Blockage of a branch of the central artery, affecting only part of the visual field.

Watch out for any sudden change in your vision

✅ Sudden loss of vision in one eye (partial or total).

✅ Blurred vision with no apparent cause.

✅ Spots or shadows in the visual field.

✅ Difficulty making out details or reading.

✅ Changes in colour perception.

✅ In some cases, there may be no obvious symptoms

If you experience any of these symptoms, see an ophthalmologist immediately to prevent irreversible damage.

Why does retinal thrombosis occur?

🔹 High blood pressure: Increases the risk of blockages in the blood vessels.

🔹 Diabetes: Can damage the circulation in the eye and increase the tendency for clots to form.

🔹 High cholesterol: Promotes the build-up of plaque in the blood vessels, restricting blood flow.

🔹 Glaucoma: Raises intraocular pressure, affecting circulation in the retina.

🔹 Cardiovascular disease: Conditions such as arteriosclerosis or atrial fibrillation can contribute to retinal thrombosis.

🔹 Smoking and a sedentary lifestyle: Factors that have a negative impact on vascular health.

Options to improve circulation and protect your vision

Treatment varies depending on the severity of the case and the condition of the retina.

Treatment Options:

🔹 Intravitreal injections: Medicines that reduce macular oedema and inflammation of the retina.

🔹 Laser (retinal photocoagulation): Used in some cases to prevent complications such as retinal ischaemia and neovascularisation.

🔹 Treatment of underlying conditions: Control of high blood pressure, diabetes and other cardiovascular risk factors.

🔹 Regular ophthalmological follow-up: To monitor progress and prevent further episodes of thrombosis.

Our Clinic

Unique spaces designed with one philosophy: excellence in caring for your eyes.

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Detailed Diagnosis

A trusted environment where we listen to you, carry out a detailed diagnosis and design a personalised treatment plan together.

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Commitment to Excellence

A team of professionals led by Drs. Ramírez and Gálvez with a dual commitment: medical excellence and close, human care.

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Cutting-Edge Technology

Equipped with the latest technology to ensure diagnoses of maximum precision and to plan every treatment with complete safety.

Answers to your questions

We answer the most common questions about the symptoms and treatment of retinal thrombosis. Here you will find all the information you need to look after your vision with confidence.

It depends on the degree of damage. In some cases, vision can be partially recovered with treatment, but in others the vision loss may be permanent.

No, it does not usually cause pain. However, it can cause a sudden decrease in vision.

Yes, especially if risk factors such as high blood pressure or diabetes are not controlled.

By maintaining a healthy lifestyle, controlling blood pressure, cholesterol and diabetes, and avoiding tobacco.

It can lead to serious complications such as macular oedema, neovascular glaucoma or even permanent blindness in the affected eye.

At least one eye examination a year is recommended, or more often if you have a history of thrombosis or vascular disease.