Narrow-angle glaucoma refers mostly to glaucoma with a narrow atrial angle. Patients are usually treated with surgical procedures to lower the intraocular pressure, such as trabeculectomy and peripheral iridectomy, as well as medications for adjunctive treatment. Narrow angle glaucoma is caused by the presence of significant atrial angle narrowing and closure of the atrial angle, resulting in obstruction of the drainage channels of atrial fluid, which in turn causes the pressure inside the eye to rise continuously. Patients should seek prompt medical attention to check the extent and degree of closure of the atrial angle and determine the treatment method under the guidance of the doctor. 1. Trabeculectomy: Trabeculectomy is a method of improving the pressure inside the eye by re-establishing a channel in the rim of the cornea. The doctor removes some of the mesh tissue inside by making a small incision in the sclera at the periphery of the eye in order to drain excess fluid. 2. Peripheral iridectomy: A small incision is made in the peripheral part of the iris by laser or surgical means, so that the aqueous humor from the back of the eye can flow directly into the front of the eye through the incision, thus relieving the high pressure in the back of the eye caused by pupillary block and the blockage of the anterior chamber angle, and lowering the intraocular pressure. In addition, patients can also be treated with intraocular pressure lowering medications under the guidance of a doctor, such as Trichostatin Eye Drops, Brinzolamide Eye Drops, and so on. Patients with narrow-angle glaucoma are advised to consult a doctor to evaluate their condition and follow the doctor’s instructions.