With glaucoma, if medication is not ideal for controlling eye pressure, then further laser treatment or surgery is required. Is laser treatment or surgery better? This is not a question that can be generalized. Generally speaking, for primary open-angle glaucoma, in early stage patients, when the elevated IOP is not too serious and the visual field damage is mild, laser therapy (SLT) can be used first to improve the filtration efficiency of the trabecular network in order to control the IOP, reduce the use of medication and protect the visual function. Once the disease has progressed to an advanced stage, laser treatment may not be able to help and surgery is usually required. For acute closed-angle glaucoma, laser treatment (YAG laser peri-iridotomy) is aimed at relieving pupillary block and reducing the risk of acute attacks, and is only indicated for patients in the preclinical, aura and partial remission stages, whose own atrial angle function status is still compensable. In patients with severely disrupted atrial angle function, laser treatment is not very useful and usually requires surgery. Another common laser treatment is ciliary photocoagulation, which is a destructive treatment usually used in absolute glaucoma, not to protect visual function, but to relieve pain and other discomfort caused by high intraocular pressure, and is usually only used in patients who have already lost their eyesight due to glaucoma. Therefore, the need for laser or surgical treatment for glaucoma is based on the severity of the disease and its own atrial drainage function, and requires careful evaluation by the doctor before a decision can be made.