Individuals with diabetes have high blood sugar, which can damage eyes.

What are diabetic eye problems?

If you have diabetes, your blood glucose, or blood sugar, levels are too high. Over time, this can damage your eyes. The most common problem is diabetic retinopathy. It is a leading cause of blindness in American adults.

Your retina is the light-sensitive tissue at the back of your eye. You need a healthy retina to see clearly. Diabetic retinopathy damages the tiny blood vessels inside your retina. You may not notice it 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
Treatment often includes laser surgery with follow-up care.

People with diabetes may also experience other eye problems, such as cataracts or glaucoma. A cataract is a cloud over the lens of your eye. Surgery can help you see clearly again. Glaucoma happens when pressure builds up in the eye, damaging the main nerve. Eye drops or surgery can help.

If you have diabetes, you should have a complete eye exam every year. Finding and treating problems early may save your vision.

Source: NIH: National Institute of Diabetes and Digestive and Kidney Diseases

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