In recent years, due to air pollution and the popularity of air conditioning, there is a gradual increase in dry eye syndrome, especially among contact lens wearers, “Internet bugs” and students, who are prone to dry eye syndrome due to excessive eye use. Ophthalmologists believe that moisturizing the eyes is more important than moisturizing the skin. The main and secondary tear glands of healthy eyes naturally secrete tears to lubricate the eyeballs; if the climate is dry, the water in the eyes evaporates more quickly. In addition, environmental pollution, the use of air conditioners and excessive eye work can aggravate tear loss, making a large increase in dry eye patients. In ophthalmology clinics, one in five people often complain of dry eyes, painful itching, burning and fatigue, which are typical symptoms of dry eyes, and the majority of patients are students, computer workers, office workers and drivers. Nowadays, many myopic patients wear contact lenses. In fact, contact lenses tend to attract water, often making the surface of the eye easily dehydrated and aggravating dry eye symptoms. The eye doctors reminded the contact lens people to keep their eyes moist at all times, and to keep their contact lenses moist with care solution at all times when they are dry, so that they do not dry out and deform the cornea. If the epithelial cells of the cornea often break the skin or keratinize, the consequences are unthinkable. At present, many cosmetic advertisements emphasize skin moisturizing, compared to eye moisturizing, which may be more important. To do a good job of moisturizing your eyes, do not “stare”, you may want to blink your eyes frequently attention to the air conditioning do not blow too long, the room should use a humidifier to increase the humidity in the air, but also help to keep the eyes moist.