diseases that cause or are connected to diabetes
Diabetes can cause blockages or abnormal growth of blood vessels in the retina, the part of the eye that reads images. Blood vessel changes in the retina can lead to vision problems and even blindness. People with diabetes are also more likely to develop cataracts or glaucoma, two other serious eye diseases.
2. Kidney disease. Diabetes is a leading cause of kidney failure. At least half of all people with diabetes may have signs of early kidney problems. High blood pressure, or a family history of it, can raise your risk of chronic kidney disease. Raised blood pressure also seems to speed up the development of the disease.