Diabetes can affect the eyes and vision in a number of ways.
It may lead to frequent fluctuations in vision, cataract in young age, decreased vision due to involvement of optic nerve, temporary paralysis of the muscles controlling the movement of eyes and thus double vision. The most significant complication of diabetes in eye is diabetic retinopathy and its complications. Retina is the layer at the back of the eye that is sensitive to light. Diabetes affects the small vessels of the retina in the eye. This causes the retina to swell and form deposits called exudates.