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.
- Adults with type 1 diabetes should have a full dilated eye exam within 5 years of their diagnosis.
- Adults with type 2 diabetes should have a complete eye exam soon after they have been diagnosed.
- Get a dilated eye exam if you are pregnant or planning to get pregnant.