Patients with neovascular glaucoma may still develop neovascularization after surgery, and the pre-existing neovascularization will not subside. Neovascular glaucoma is one of the more common types of glaucoma secondary to diabetic retinopathy and retinal vein occlusion, which cause the retina to become hypoxic and capillary-perfused, releasing vascular endothelial growth factor, which leads to the formation of neovascularization. Surgical treatment can create artificial aqueous drainage channels to drain excess aqueous out of the eye and lower the intraocular pressure to protect the optic nerve from high intraocular pressure, but it can’t make the neovascularization subside, and neovascularization will continue to form if the hypoxic factors in the eye can’t be removed after surgical treatment. Patients are advised to consult the ophthalmology department of a regular hospital and under the guidance of a doctor.