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    Diabetes and Blurred Vision

    Don't run out and buy a new pair of glasses as soon as you notice you have blurred vision. It could just be a temporary problem that develops rapidly and is caused by high blood sugar levels.

    High blood sugar causes the lens of the eye to swell, which changes your ability to see. To correct this kind of blurred vision, you need to get your blood sugar back into the target range. For many people this is from70 mg/dL to 130 mg/dL before meals and less than 180 mg/dL one to two hours after the start of a meal. Ask your doctor what your personal target range should be.

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    If you have diabetes, you probably know the warning signs of low blood sugar, or hypoglycemia. "It's been described best as a little like the feeling you get when you're sliding on ice in a car: panic, rapid heart rate, [and] sort of a sense of doom," says John Buse, MD, PhD, professor of medicine, chief of the division of endocrinology, and executive associate dean for clinical research at the University of North Carolina at Chapel Hill School of Medicine. You also probably know that hypoglycemia...

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    Blurred vision can also be a symptom of more serious eye problems. If your vision is blurred, contact your doctor.

    The American Diabetes Association offers these eye care guidelines for people with diabetes:

    WebMD Medical Reference

    Reviewed by Melinda Ratini, DO, MS on August 11, 2014

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