Retinal detachment is the separation of the neural retina from the retinal pigment epithelium. It can be divided into three types according to different causes.
- The first is rhegmatogenous retinal detachment.
- The second is exudative retinal detachment.
- The third is tractional retinal detachment.
The causes of rhegmatogenous retinal detachment are usually adverse factors such as high myopia, aphakia, lattice degeneration of the retina, and eye trauma.

The cause of exudative retinal detachment is usually due to the involvement of the retinal or choroidal blood circulation by the lesion, which causes fluid to accumulate under the neural retina.
The causes of tractional retinal detachment are usually eye trauma, retinal vascular diseases that lead to vitreous hemorrhage, intraocular surgery, uveitis, etc., which can cause vitreous opacification, thus forming an epiretinal membrane or subretinal fibrous bands, resulting in tractional retinal detachment.
