The tissue, nerve and blood vessel changes that occur in diabetes can affect the body in a number of ways, and the eye is no exception. Diabetic retinopathy is the major potential threat to vision amongst the diabetic population and is characterised by. However, the most important effect that needs to be checked for is diabetic retinopathy - damage to the retina, the light-sensitive layer at the back of our eyes. Diabetic retinopathy can, if severe enough, lead to blindness. Careful and regular monitoring of eye health is essential to minimise the risks associated with diabetes.