The diagnosis of glaucoma is multifaceted and cannot rely solely on a certain indicator, mainly including the following: First, typical symptoms of glaucoma attack, such as eye distension, nasal root soreness, ipsilateral migraine, nausea, vomiting, and sharp loss of vision. Second, the examination of intraocular pressure, which is also a very important indicator, is usually considered that the range of normal human intraocular pressure should be 8-21mmHg, if more than 21mmHg, there is a possibility of glaucoma. Third, visual field examination. Glaucoma can cause damage to the optic nerve, so there is usually a visual field defect, and this indicator is also more important. Fourth, the examination of fundus, including the color of the optic disc, the size of the cup-to-disc ratio, and the analysis of the optic nerve fiber layer. Only after the above-mentioned indicators can the diagnosis of the presence of glaucoma be confirmed.