Do you know what causes the most blindness in U.S. adults? It is an eye problem caused by diabetes, called diabetic retinopathy. Your retina is the light-sensitive tissue at the back of your eye. You need a healthy retina to see clearly.
Diabetic retinopathy happens when diabetes damages the tiny blood vessels inside your retina. You may not notice at first. Symptoms can include:
Blurry or double vision
Rings, flashing lights or blank spots
Dark or floating spots
Pain or pressure in one or both of your eyes
Trouble seeing things out of the corners of your eyes
If you have diabetes, you should have a complete eye exam every year. Finding and treating problems early may save your vision. Treatment often includes laser treatment or surgery.