Early-stage open-angle glaucoma patients who are treated aggressively and have their intraocular pressure (IOP) controlled to a safe level can maintain their condition for a lifetime. Open angle glaucoma usually starts slowly and is caused by abnormalities in the function of the trabecular meshwork and other structures inside the eye, and the intraocular pressure will gradually rise. If left untreated, the high intraocular pressure can compress the optic nerve and cause visual field defects and vision loss, which may eventually lead to blindness. If timely treatment is provided, for example, by administering intraocular pressure-lowering medication such as carteolol hydrochloride eye drops under the direction of a doctor, or by surgical treatment, the progression of the disease can be stopped as long as the intraocular pressure can be maintained at a safe level, thus stabilizing the patient in the current state. When eye discomfort occurs, consult a doctor in time to confirm the diagnosis of open-angle glaucoma and follow the doctor’s instructions for active treatment.