Symptoms of elderly glaucoma patients mainly include headache, nausea, vomiting, vision loss, iris vision, etc. 1. Headache: When glaucoma attacks, high intraocular pressure exerts greater pressure on the wall of the eyeball, and the trigeminal nerve and other nerves are compressed, resulting in headache, dizziness and other discomforts. 2. Nausea, vomiting: high intraocular pressure can also stimulate the vomiting center, resulting in nausea, vomiting and other general discomfort. 3. Loss of vision: High intraocular pressure can lead to corneal edema, affecting the light into the eye, thus causing patients to lose vision. In addition, long-term high intraocular pressure can also damage the optic nerve, resulting in visual field defects. 4. Rainbow vision: High intraocular pressure leads to corneal edema and changes in the refractive power of the cornea, resulting in a rainbow-like color ring when the patient looks at a white light source. The damage caused by glaucoma to vision is irreversible, and it is recommended that patients with glaucoma consult a hospital in a timely manner to assess their condition and follow the doctor’s instructions for treatment.