Diabetic retinopathy is a complication of diabetes affecting the blood vessels of the retina at the back of the eye. It is one of the biggest causes of blindness and visual impairment amongst the working age population in the United Kingdom. Diabetic retinopathy can be in a significantly advanced stage before any noticeable changes in vision occur. If untreated, 50% of those who develop proliferative diabetic retinopathy will lose their sight within two years and some, even within twelve months.

NHS Somerset offer retinal screening every one to two years to people aged over 12 within Somerset who have a diagnosis of diabetes. By screening at least annually, they can help improve quality of life through the early detection and treatment of diabetic eye disease, also known as diabetic retinopathy.