Skip to content

Diabetes Health Center

Font Size

Diabetic Retinopathy - Cause

Diabetes damages small blood vessels throughout the body, leading to reduced blood flow. When these changes affect the tiny blood vessels in the eyes, diabetic retinopathy may occur.

In the early stage of diabetic retinopathy, tiny blood vessels in the eye weaken and develop small bulges that may burst and leak into the retina. Later, new fragile blood vessels grow on the surface of the retina. These blood vessels may break and bleed into the eye, clouding vision and causing scar tissue to form.

Recommended Related to Diabetes

Diabetes Care: Managing Your Time When You Have Diabetes

Sometimes, living with diabetes can seem like a full-time job -- trying to keep up with everything you need to do for proper diabetes care.  "Diabetes is a very time-consuming disease to manage well," says Karmeen Kulkarni, MS, RD, CDE, and former president of health care and education for the American Diabetes Association. "The medication, the food, the physical activity -- you add life in general to that whole picture and it ends up being quite challenging."

Read the Diabetes Care: Managing Your Time When You Have Diabetes article > >

The scar tissue may pull on the retina, leading to retinal detachment. Retinal detachment occurs when the retina separates from the wall of the eye. This can lead to vision loss.

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Medical Reference from Healthwise

    Last Updated: January 28, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
    1
    Next Article:

    Is This Normal? Get the Facts Fast!

    Check Your Blood Sugar Level Now
    What type of diabetes do you have?
    Your gender:

    Get the latest Diabetes newsletter delivered to your inbox!


    or
    Answer:
    Low
    0-69
    Normal
    70-130
    High
    131+

    Your level is currently

    If the level is below 70 or you are experiencing symptoms such as shaking, sweating or difficulty thinking, you will need to raise the number immediately. A quick solution is to eat a few pieces of hard candy or 1 tablespoon of sugar or honey. Recheck your numbers again in 15 minutes to see if the number has gone up. If not, repeat the steps above or call your doctor.

    People who experience hypoglycemia several times in a week should call their health care provider. It's important to monitor your levels each day so you can make sure your numbers are within the range. If you are pregnant always consult with your health care provider.

    Congratulations on taking steps to manage your health.

    However, it's important to continue to track your numbers so that you can make lifestyle changes if needed. If you are pregnant always consult with your physician.

    Your level is high if this reading was taken before eating. Aim for 70-130 before meals and less than 180 two hours after meals.

    Even if your number is high, it's not too late for you to take control of your health and lower your blood sugar.

    One of the first steps is to monitor your levels each day. If you are pregnant always consult with your physician.

    Did You Know Your Lifestyle Choices
    Affect Your Blood Sugar?

    Use the Blood Glucose Tracker to monitor
    how well you manage your blood sugar over time.

    Get Started

    This tool is not intended for women who are pregnant.

    Start Over

    Step:  of 

    Today on WebMD

    Diabetic tools
    Symptoms, diagnosis, treatment, and more.
    woman flexing muscles
    10 strength training exercises.
     
    Blood sugar test
    12 practical tips.
    Tom Hanks
    Stars living with type 1 or type 2.
     
    Woman serving fast food from window
    Video
    Can Vinegar Treat Diabetes
    Video
     
    Middle aged person
    Tool
    are battery operated toothbrushes really better
    Video
     

    Prediabetes How to Prevent Type 2 Diabetes
    Article
    type 2 diabetes
    Slideshow
     
    food fitness planner
    Tool
    Are You at Risk for Dupuytrens Contracture
    Article