Diabetes is one of the leading causes of blindness for people under the age of 65 in Canada. Diabetes can affect the retina or blood vessels in the eyes; people with the condition are far more likely to develop cataracts and glaucoma at a younger age.
Many vision and eye health problems are unique to diabetics and can lead to permanent blindness if not treated.
If you have diabetes, it is important to have your eyes examined at least annually.
There are two types of diabetic retinopathy:
This occurs when the blood vessels which provide nourishment to the retina weaken; this can cause the blood vessels to leak, rupture and hemorrhage. Subsequently, the retina begins to swell, resulting in impaired vision.
As the nonproliferative retinopathy worsens, the blood vessels eventually become blocked or closed, causing parts of the retina to die. New – but fragile – blood vessels grow in their place which are much more prone to leaking and hemorrhaging, furthering impairing vision to the point of potential blindness.