Glaucoma intraocular pressure of 21mmHg or less is normal, the specific circumstances need professional ophthalmologist’s judgment, not subjective. Intraocular pressure is only an auxiliary indicator for diagnosing glaucoma, not an absolute standard. The normal intraocular pressure of glaucoma is 21mmHg, and the intraocular pressure of general people will not be more than 5mmHg. After glaucoma treatment, the intraocular pressure needs to be lowered to less than 21mmHg, which will not cause visual field damage and optic nerve damage in general. Control of intraocular pressure can be accomplished by using medications such as Trichomonine eye drops and Catheterol Hydrochloride eye drops as prescribed by the doctor to lower the intraocular pressure, or by surgical methods such as trabeculectomy. If you suffer from glaucoma, you should use your eyes reasonably, and if you have any other discomforts, you should go to the hospital in time, and standardize the treatment under the doctor’s guidance.