WHAT IS DIABETIC EYE DISEASE?
Diabetes mellitus, commonly known as diabetes, is a leading cause of vision loss among working-age adults in the United States. An estimated 30.3 million people have diabetes, including people with type 1, type 2, and gestational diabetes, and more than a third of those show signs of retinopathy.
Diabetic retinopathy occurs when diabetes damages the tiny blood vessels in the retina. These weakened or damaged blood vessels leak fluid or blood into the back of the eye, which distorts your vision.
There are two types of diabetic retinopathy: nonproliferative and proliferative.
Nonproliferative diabetic retinopathy refers to the early stages of the disease. In this early stage, weakened blood vessels leak fluid and distort sight.
Proliferative diabetic retinopathy is the advanced stage of the disease. As the retina loses its blood supply, a process called retinal ischemia, new blood vessels grow around the retina and into the vitreous humor, the clear substance inside the eye. This retinal neovascularization is fragile, and the abnormal vessels can burst and cause a vitreous hemorrhage. They may also form scar tissue that leads to retinal detachment.