Vein Occlusions

What is Vein Occlusion?

The light-sensitive tissue in your eye is called the retina. It gives us the ability to see because it is made up of nerve cells that detect light. Normally, these nerve cells get nutrients from your arteries and dump waste into your veins. But if a vein is blocked, it cannot carry blood away from the retina. Instead, fluid leaks out of the vein. This is called a vein occlusion.

Causes & Risk Factors:

Retinal veins are very narrow. If a large clot tries to pass through, it can block the vein, causing vein occlusion.

The risk of vein occlusion is higher for those with:

  • Diabetes
  • High blood pressure
  • High cholesterol levels
  • Health problems that affect blood flow


Vein occlusion nearly always happens in one eye. The symptoms are:

  • Blurry vision that gets worse in a few hours or days
  • Sudden loss of vision

Treatment Options

The treatments for Vein Occlusion are

  • Intravitreal Injections
  • Laser Treatment

However, there is no way to remove the clot from the veins. Treatment can only be used to control problems caused by the clot.