Diabetic retinopathy is caused by changes in the blood vessels of the retina and can result in blindness. Everyone who has diabetes is at risk. In the early states, it isn't painful, nor are there necessarily symptoms. So it is important that people with diabetes have an eye exam at least once a year.

Diabetes Mellitus,Type 1 is usually diagnosed in children and young adults, your pancreas does not produce enough insulin, which is necessary to break down glucose in food. Frequent thirst, hunger and urination are symptoms. There is no cure for diabetes, but working closely with your doctor to monitor blood sugar levels, eating a proper diet and getting regular exercise can help you maintain good health.

Diabetes Mellitus,Type 2 diabetes, the most common form of the condition, the body either resists insulin or does not produce enough of it. Being overweight, eating a poor diet and getting little physical activity increases your risk.