Final answer:
Diabetic patients are at an increased risk of developing complications such as blindness, heart disease, and kidney failure.
Step-by-step explanation:
Diabetic patients are at an increased risk of developing blindness due to damage to blood vessels in the retina of the eye. This damage can result in gradual vision loss and blindness. Other complications of diabetes include heart disease, kidney failure, and other serious health problems. Properly controlling blood sugar levels through medication, diet, and exercise can help reduce the risk of these complications.