A central retinal vein occlusion (or "CRVO") refers to when the main vein...which drains blood from the eye...gets blocked...usually by a blood clot. Blood therefore cannot leave the eye normally...and leaks out throughout the retina. The retina also gets very swollen.Patients typically experience quite a gradual but severe loss of vision (the degree of vision loss depends on how severely the blood supply gets reduced).
Patients need to see there general physician...and need to undergo many tests...to look for potential blood abnormalities, high blood pressure, diabetes...and other conditions. Patients are often started on Aspirin...to reduce the chances of a recurrent such blockage.
Treatment is often quite successful...and includes observation (sometimes spontaneous improvement occurs), laser therapy, various drug injections (Kenalog or Avastin) or vitrectomy surgery.
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ReplyDeleteTreatment of Retinal Vein Occlusion depends on their type and severity, and can consist of laser treatment, drug injections or a vitrectomy. A BRVO may not need any treatment, and may heal itself given time. A CRVO, on the other hand, may involve immediate treatment.
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