Retinal vein occlusion (RVO) is a serious eye condition that occurs when a blood clot blocks the veins carrying blood away from your retina. Often called an “eye stroke,” RVO can lead to sudden vision loss if not treated promptly. Understanding retinal vein occlusion symptoms and treatment can help you act fast and protect your sight.

What Are the Symptoms of Retinal Vein Occlusion?

If you experience retinal vein occlusion, you may notice:

• Sudden blurry or lost vision in one eye, which can happen over hours or days.
• Dark spots or floaters in your field of vision.
• Distorted vision, where straight lines appear wavy.

These symptoms can vary in severity, but any sudden change in vision requires immediate medical attention.

What Causes Retinal Vein Occlusion?

RVO typically occurs due to:

• Blood clots in the retinal veins.
• High blood pressure, diabetes, or glaucoma, which damage blood vessels.
• Atherosclerosis (hardening of the arteries).

People over 50, or those with cardiovascular disease, are at higher risk.

Types of Retinal Vein Occlusion

1. Central Retinal Vein Occlusion (CRVO): Affects the main vein of the retina, often causing severe vision loss.
2. Branch Retinal Vein Occlusion (BRVO): Blocks smaller veins, usually leading to less severe vision problems.
3. How Is Retinal Vein Occlusion Treated?

Early retinal vein occlusion treatment can prevent permanent damage. Options include:

• Anti-VEGF injections to reduce swelling and improve vision.
• Steroid injections or implants to control inflammation.
• Laser therapy to treat complications like abnormal blood vessel growth.

Your eye specialist will recommend the best approach based on the type and severity of your RVO.

Why Is Early Treatment Important?

Without treatment, RVO can cause permanent vision loss or complications like glaucoma. If you experience sudden vision changes, see an eye doctor immediately.

For more on related eye emergencies, read about floaters and flashes in eyes causes and treatment and retinal tear symptoms and treatment.

If you are unsure whether your symptoms require emergency attention, it is safer to call your healthcare provider or eye clinic for advice.

With Pakistan’s internationally trained and most experienced cataract surgeons, corneal transplant surgeons and eye surgeons specializing in every single sub specialty in ophthalmology, The Eye Center – Dr. Mahnaz Naveed Shah & Associates in Karachi provides guidance for both routine and urgent eye care needs. Their team can advise whether you should schedule a screening or seek immediate attention, ensuring safety and comfort. For expert consultation, contact The Eye Center – Dr. Mahnaz Naveed Shah & Associates at 03041119544 to book an appointment.

With a proven track record of excellence in glaucoma and cataract care, Dr. Mahnaz Shah and her team are here to help you protect your vision—with confidence.