It is a well-known fact that high blood sugar levels cause an increased risk of eye problems in diabetes, but what exactly causes diabetic blurred vision? Diabetic blurred vision is normally just a temporary eye problem that develops rapidly in diabetes. It is caused by your blood sugar levels being too high.

In diabetes, high blood sugar levels cause the lens of the eye to swell. This changes your ability to see correctly. When blood sugar levels return to normal, the symptoms don’t go away automatically. It can take up to three months for your vision to completely return to normal (WebMd.com, 2012). Diabetic blurred vision is often one of the first telling signs that a person has diabetes.

You must be careful in self-diagnosing the problem, however. Diabetic blurred vision can sometimes be a symptom of a more serious diabetic eye problem such as cataracts, glaucoma, and retinopathy. …