Symptoms of mild glaucoma are mainly eye swelling, headache, blurred vision, etc. Glaucoma is a relatively common clinical eye disease. Glaucoma is a relatively common clinical ophthalmic disease, which can be broadly categorized into primary glaucoma, secondary glaucoma and childhood (developmental) glaucoma, among which primary glaucoma can be categorized into primary open-angle glaucoma and primary angle-closure glaucoma. Clinical symptoms of patients with different conditions vary, but most of the patients mainly suffer from eye distension, headache and so on. Patients with mild primary open-angle glaucoma basically have no clinical symptoms in the early stage, but the condition will cause hidden damage to the optic nerve. Patients with mild acute, primary closed-angle glaucoma may experience eye swelling, headache, nausea, as well as blurred vision and iris vision as the disease progresses. In contrast, pediatric (developmental) glaucoma patients often have symptoms such as large eyeballs, tearing, and photophobia. Glaucoma patients with symptoms such as eye swelling and headache need to pay attention and seek medical treatment as soon as possible.