there are 3 types of Retinal detachment
a. Rhegmatogenous: This is the most common type. In this case, you either have a tear or a hole in your retina, which allows the fluid to flow or slip from the opening and get behind the retina. The retinal pigment epithelium and retina is separated by the fluid, causing retinal detachment.
b. Exudative: In this case, there are no breaks or tears. Diseases such as inflammation, tumor behind the retina and coat’s disease cause abnormal development of blood vessels in the retina cause retinal detachment.
c. Tractional: This is a less common type of retinal detachment. In this case, the scar tissue on the retina’s surface contracts the retina to pull away from the back of the eye. This mainly affects diabetic patients in advanced stages of diabetic retinopathy called proliferative diabetic retinopathy.