MILD

Early stage with small areas of swelling in the blood vessels of the retina, often showing microaneurysms.

MODERATE

Progression with more extensive damage, where blood vessels become blocked, leading to retinal blood supply reduction

SEVERE

Many blood vessels are blocked, causing significant retinal damage, with higher risk of neovascularization

PROLIFERATIVE

Advanced stage where abnormal new blood vessels grow on the retina, potentially leading to severe vision loss or retinal detachment.