Glaucoma is a serious group of blinding eye diseases, often closely related to the elevated intraocular pressure, which directly threatens and damages the function of the optic nerve. When the intraocular pressure exceeds the limits of the intraocular tissues, especially the retinal optic nerve, it will cause damage to the tissues of the eye, especially the optic nerve, and the most typical and prominent manifestation is the sunken atrophy of the optic nerve papilla and the characteristic narrowing of the visual field. The most typical and prominent manifestation is the sunken atrophy of the optic nerve papilla and the characteristic narrowing of the visual field.