The laceration may be due to Bruch membrane rupture and pigment epithelial atrophy. The mechanism may be related to genetic factors, more likely with biomechanical abnormalities, such as axial extension, intraocular pressure, intraocular deformation and Bruch membrane traction tear and other factors, and blood circulation disorders, age-related. For the pigment epithelium-Bruch membrane capillary layer caused by damage. Lacquered pattern rarely damage the function, but can cause visual deformation and relative to the center of the dark spots, when the crack pattern rupture can occur under the retinal neovascularization, causing macular bleeding, the formation of Fuchs spot, is further impaired vision The precursor. Paint cracks eventually induce choroidal, retinal degeneration. The actual incidence of Avila's cleansing pattern may be higher, as some may have been fused with deep choroidal atrophy.