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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 (80-140 mg/dL before meals, and 100-160 mg/dL before bedtime snack). It may take as long as three months after your blood sugar is well controlled for your vision to fully get back to normal. Blurred vision can also be a symptom of more serious eye problems. If your vision is blurred, contact your doctor.

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14y ago
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14y ago

inadequate carbon which combined with oxygen does not provide the complete amount of life ability to the genetic materials of the eyes

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12y ago

High levels of glucose in blood (high blood sugar) can cause the lens of the eye to swell, which can result in blurred vision.

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Q: Why does high blood glucose level affect your eyesight?
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