Symptoms

• Sudden painless vision loss of vision.

• If effected area is not in center of eye then BRVO can go unnoticed with no symptoms.
   

Causes

• Blockage of arteriovenous crossing because of atherosclerosis when vein is compressed.

• Uncontrolled high blood pressuse

• Over weight or obese

• Cardiovascular diseases

• Glaucoma

• In younger patients, an abnormal tendency to develop blood clotting is possible.