Eye complications in diabetes are very common. One complication is called diabetic retinopathy(retina disease). This occurs through long term high levels of glucose in the blood.
Eventually the little blood vessels in back of the eye become damaged. Protein and blood then leak into the retina causing it also to become damaged. Additionally, brittle little blood vessels form and break easily, resulting in bleeding into the retina (as shown by the dark red part of the eye picture in this image).
Doctors report that about 90% of people with diabetes (that is, nine of every ten people with diabetes) become blind due to the high blood glucose levels.
- Rizwana Kousar 2010. What is Diabetes? Community Education Series, Melbourne. © Australian Community Centre for Diabetes (ACCD).