Diabetic Eye Problems—Diabetes Type 2

Also called: Type 2 Diabetes

Diabetes means your blood glucose, or blood sugar, levels are too high. With type 2 diabetes, the more common type, your body does not make or use insulin well. Insulin is a hormone that helps glucose get into your cells to give them energy. Without insulin, too much glucose stays in your blood. Over time, high blood glucose can lead to serious problems with your heart, eyes, kidneys, nerves, and gums and teeth.

You have a higher risk of type 2 diabetes if you are older, obese, have a family history of diabetes, or do not exercise. Having prediabetes also increases your risk. Prediabetes means that your blood sugar is higher than normal but not high enough to be called diabetes. If you are at risk for type 2 diabetes, you may be able to delay or prevent developing it by making some lifestyle changes.

The symptoms of type 2 diabetes appear slowly. Some people do not notice symptoms at all. The symptoms can include

• Being very thirsty
• Urinating often
• Feeling very hungry or tired
• Losing weight without trying
• Having sores that heal slowly
• Having blurry eyesight

Blood tests can show if you have diabetes. One type of test, the A1C, can also check on how you are managing your diabetes. Many people can manage their diabetes through healthy eating, physical activity, and blood glucose testing. Some people also need to take diabetes medicines.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

• A1C test (Medical Encyclopedia)
• Choose More than 50 Ways to Prevent Type 2 Diabetes – NIH – Easy-to-Read (National Diabetes Education Program)
• Diabetes type 2 – meal planning (Medical Encyclopedia)
• Giving an insulin injection (Medical Encyclopedia)
• High blood sugar (Medical Encyclopedia)
• Type 2 diabetes (Medical Encyclopedia)
• Type 2 diabetes – self-care (Medical Encyclopedia)

Also called: Diabetic retinopathy

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 treatment or surgery, with follow-up care.

Two other eye problems can happen to people with diabetes. A cataract is a cloud over the lens of your eye. Surgery helps 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.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

• Diabetes – eye care (Medical Encyclopedia)
• Diabetes and eye disease (Medical Encyclopedia)
• Diabetes eye exams (Medical Encyclopedia)
• Fluorescein angiography (Medical Encyclopedia)
• Intravitreal injection (Medical Encyclopedia)
• Laser photocoagulation — eye (Medical Encyclopedia)
• Standard ophthalmic exam (Medical Encyclopedia)