How can diabetes hurt my eyes?

High blood sugar and high blood pressure from diabetes can hurt four parts of your eye:

• Retina (REH-ti-nuh). The retina is the lining at the back of the eye. The retina's job is to sense light coming into the eye.
• Vitreous (VIH-tree-us). The vitreous is a jelly-like fluid that fills the back of the eye.
• Lens. The lens is at the front of the eye and it focuses light on the retina.
• Optic nerve. The optic nerve is the eye's main nerve to the brain.

This is a picture of an eye from the side.