The most important measure is lowering the intraocular pressure to low levels. To achieve this, eye drops are initially prescribed, which you must use regularly and permanently, often for life. If sufficient pressure reduction cannot be achieved with eye drops, laser treatment (LTP/SLT) or surgery is required.
Furthermore, adequate blood flow to the optic nerve must be ensured. An examination by your general practitioner or internist to check the cervical vessels and blood pressure is recommended.