5. Blurred Vision
When your glucose levels are high, your body needs to dilute your blood and that means pulling liquid from your tissues. One of the places where that is done in the lens of your eyes. This means that you may have a hard time focusing and experienced a blurry vision.
In addition, free radicals can damage capillaries that lead to your eyes. These free radicals are produced in diabetics in a large quantity. There are quite a few herbal remedies as well as some more scientifically established ones that provide antioxidants that will help this problem.