The most serious eye condition associated with Diabetes is diabetic retinopathy. It occurs when the tiny blood vessels at the back of your eye become blocked and leak.

There are different types of diabetic retinopathy -

Background diabetic retinopathy: 

Background retinopathy does not usually affect your sight, but your eyes will need to be monitored carefully to make sure your retinopathy doesn’t become worse.

Proliferative diabetic retinopathy: 

If background retinopathy gets worse, many of the retinal blood vessels become damaged or blocked. When these changes affect a large area of your retina, blood supply to the retina is reduced. The body tries to fix this by growing new blood vessels on the retinal surface or into the vitreous gel. Unfortunately, these new vessels are weak and they bleed very easily, which may affect your vision.

Diabetic maculopathy: 

When your macula (the central part of your retina) is affected by your retinopathy, you are said to have diabetic maculopathy. This means that your central vision, which is required for seeing fine detail and colour, will be blurred.