Retinal Vascular Occlusions
A retinal vein occlusion is a blockage of small veins that carry blood away from the retina, and can be considered a small stroke in the eye. The blockage causes the walls of the vein to leak blood and excess fluid into the retina. When this fluid collects in the macula (the area in the retina that allows us to read and see faces), central vision becomes extremely blurry.
What are the types of RVO?
Non-ischemic RVO
A milder, more common version of RVO that includes a partial blockage of the central vein. Symptoms include sudden loss of vision in one eye, or distorted/blurry vision.
Ischemic RVO
The progressed form of RVO, which includes total blockage of the central vein. Restricted blood flow causes a severe loss of vision, which can lead to abnormal new blood vessel growth in the eye. Symptoms include sudden loss of vision, distorted or blurry vision, and in some cases, pain.
Who is at risk for RVO?
RVO is associated with aging individuals with either hypertension, diabetes, or glaucoma. However, RVO can affect anybody.
How can you treat RVO?
Depending on the diagnosis, laser or injections of medication into the eye may be performed to stabilize the blood leakage caused by RVO.
How can you prevent RVO?
Unfortunately, there are no preventative measures one can take for RVO. One should see a doctor immediately upon noticing the symptoms of RVO.