Laser surgery for glaucoma patients does not usually harm vision. Laser surgery for glaucoma patients mainly involves laser iris perimetry, which is used to treat acute angle-closure glaucoma and can reduce the risk of acute attacks. The laser surgery is easy to perform, safe and usually does not affect the patient’s vision. The purpose of the treatment is to make an artificial incision in the iris to communicate between the anterior and posterior chambers of the eye, so that aqueous drainage becomes smoother, thus lowering the intraocular pressure and preventing acute attacks of glaucoma. Glaucoma patients need to go to the ophthalmology department of the hospital for examination before the doctor decides whether laser treatment is suitable for them according to their condition.