The most important cause of retinal detachment is due to the formation of retinal fissures. There is no single risk factor for fissures, but the main factors are: high myopia, ocular trauma, and retinal proliferative vascular disease. Patients with high myopia are at high risk of retinal detachment, and the main occurrence of foraminogenic retinal detachment. As the degree continues to increase and the eye axis gradually grows, the retina slowly thins, especially in the peripheral part of the retina where the so-called lattice-like degeneration zone appears, in which spontaneous fissures in the retina may form. The intravitreal fluid can flow through the fissure into the subretina, jacking up the retina and separating it from the underlying tissue, causing retinal detachment. In most cases of ocular trauma, the retinal detachment also occurs as a result of external forces to the point where the retinal fissure forms. The second major cause of retinal detachment is due to the presence of a pulling force within the vitreous. The common cause of retinal detachment is due to proliferative retinal vascular diseases, such as: central retinal vein obstruction, diabetic retinopathy, due to long-term retinal vascular obstruction, retinal tissue ischemia and hypoxia, a large number of cytokines that can cause neovascular growth are produced in the eye, stimulating vitreoretinal tissue to grow proliferative membrane with a large amount of fibrous tissue, and fibrous proliferative membrane In the later stages of growth, the fibrous proliferating membrane is particularly prone to contraction, causing the retina to be stretched and gradually detached from its original anatomical position, eventually developing into retinal detachment. Another relatively rare cause of retinal detachment is retinal detachment due to massive plasma exudation. It is mainly seen in inflammatory diseases: chorioretinitis, uveal leakage syndrome, and sclerositis in adults; a retinal vascular developmental abnormality called Coats disease in children; central plasma chorioretinal disease commonly seen in young adults; and retinal choroidal tumors.