It is possible to go blind at age 30 when glaucoma is detected, depending on the patient’s condition. Whether or not a patient will go blind from glaucoma has nothing to do with age. If the function of the optic nerve has been seriously damaged when the patient is diagnosed with glaucoma, it will eventually lead to blindness and cannot be reversed. However, if the condition is not very serious, the patient can maintain a certain level of visual function for life with active treatment. Glaucoma is a disease that causes progressive optic nerve damage and visual field loss due to elevated intraocular pressure. It is asymptomatic in the early stages, but acute attacks can be characterized by severe headache, eye pain, nausea and vomiting, and sudden loss of vision. The main treatment modalities include medication, laser treatment and extraocular drainage surgery. It is recommended that when patients find out that they have glaucoma, they should treat it in time and actively cooperate with their doctors, so as not to delay the treatment time, which may lead to blindness and other serious consequences.