• It is a blockage in the veins in the eye. The veins in the retina are responsible for transporting used blood from the retina back into the body.
• The blockage of the vein causes blood to back up in the eye, which causes hemorrhages, swollen retinal veins, and potentially retinal swelling and vision loss.
• A retinal vein occlusion can happen in 2 ways:
  • Central Retinal Vein Occlusion (CRVO): This happens when the “main highway” vein gets blocked, which can impact the entire field of vision.
  • Branch Retinal Vein Occlusion (BRVO): This is like a blockage on a smaller “side street,” which may cause vision loss in just a part of the eye.
• Most patients who have this problem have risk factors for vascular disease such as: diabetes, high blood pressure, arteriosclerosis, open angle glaucoma or a condition called thrombophilia.
• RVO is most common in people over 50 years, with the risk increasing significantly after 65 years.
• In younger patients, usually under the age of 40, checking for clotting disorders is important. Your doctor may find an important abnormality that needs to be treated.
• If there is a family history of strokes or miscarriages or if the patient has autoimmune problems, then the tests are particularly important.
• Following up with your primary care doctor for a review of your medical condition and treatment for any risk factors is also very important.
• Early detection and prompt treatment can reduce the risk of vision loss.

Key Takeaways:

• RVO is a blockage in a retinal vein, potentially causing vision loss.
• Act fast – see an eye doctor immediately if you suspect a RVO.
• Various treatment options can help manage complications and protect your vision.