Except for MODY 2, all other types of MODY cause the same complications as typical type 1 or type 2 diabetes, including increased risk of heart disease, kidney failure, and blindness. Which problems occur depends on which gene is affected. Patients with MODY 2 have the best prognosis because it causes milder hyperglycemia. They typically do not require any medication, and do not develop long-term complications. Keeping blood sugar close to normal will minimize complications of MODY, as it does with other types of diabetes.