How does diabetes affect the eyes?
Diabetes causes changes in the blood vessels in the retina. It can lead to damage of the capillaries causing them to leak fluid in the retina causing blurring of the central vision (diabetic macular edema). It can also lead to areas of poor circulation in the retina which results in the development of abnormal blood vessels (neovascularization). These abnormal blood vessels may bleed and scar resulting in the loss of vision and retinal detachment.
