Dry eye syndrome is mainly caused by dry eyes, often due to a variety of reasons, and severe dry eye syndrome can bring great trouble to patients’ lives, and even lead to damage to the patient’s vision, affecting normal life; at the same time, some dry eye syndrome is the eye manifestation of dry syndrome, manifested as dry eyes and dry mouth and joint pain at the same time. In more serious cases, dry eye patients may use their hands to rub their eyes because of excessive dryness, which leads to bacterial growth in the eyes and causes eye infection, itchy eyes, redness, foreign body sensation, stinging pain, photophobia and other symptoms, and mucus debris or fibrous secretions appear in the eyes. If left untreated, the cornea is infected with bacteria or the cornea is too dry, leading to inflammation and ulceration, or even leading to corneal perforation and keratinization of the conjunctiva, then the patient’s vision will be affected. Patients with severe dry eye can use artificial tears instead of tears to relieve the discomfort. They can also apply low concentration cyclosporine A drops under the guidance of a doctor to reduce the inflammation of the surface and tear glands and improve tear secretion. If accompanied by blepharitis, antibiotic drops and eye ointment can be applied. If treated aggressively, vision is usually not affected. In addition, in order to prevent the occurrence of severe dry eye, it is important to protect the eyes in daily life and not to play with computers or cell phones for a long time. You should eat a light and nutritious diet rich in vitamins, such as eggs, milk, carrots, etc.