Peripheral neuropathy refers to damage to the peripheral nervous system, the network of nerves outside the brain and spinal cord. This damage can disrupt communication between the brain and the rest of the body, leading to a variety of symptoms, most commonly affecting the hands and feet.
Diabetic retinopathy is a diabetes-related eye condition that damages the retina, the light-sensitive tissue at the back of the eye. It's a leading cause of blindness, particularly in working-age adults. High blood sugar levels cause damage to the blood vessels in the retina, which can lead to vision problems and, in severe cases, blindness.