In winter, the climate is cold, the air humidity is low, and there is a lot of wind and snow, because the eyes are exposed, so it is easy to suffer from a variety of eye diseases, should pay attention to strengthen the prevention. Winter is prone to the following eye diseases: 1, dry eye disease: dry cold winter, is the high incidence of “dry eye disease” season, especially those who wear contact lenses, “net worms” and students, due to excessive use of the eyes, more likely to appear “Dry eye syndrome” is more likely to occur due to excessive eye use, especially among contact lens wearers, Internet users and students. Therefore, long-term computer work people, to blink often, to promote eye blood circulation, so that the eyes “moisturizing”; use the computer every 40 minutes, to move the eyes from the screen to look into the distance; wear contact lenses to reduce the time to wear, usually can be more hot towel hot compress eyes, do not stay up late, to develop a Regular habits; winter in the room with air conditioning should use humidifiers, so that the humidity in the air to increase, but also help to keep the eyes moist. 2, glaucoma: glaucoma is a common blinding eye disease with elevated intraocular pressure, poor perfusion of the optic papilla, combined with visual dysfunction. This disease is divided into congenital, primary and secondary three. In addition to congenital, the latter two have the highest incidence in winter, especially within 24 hours after the passage of strong cold air. This is caused by the excessive drop in temperature, which disturbs the blood pressure due to the disturbance of the phytomodulatory function and causes fluctuations in intraocular pressure. Especially for the elderly over 65 years old, once you find eye discomfort with headache, recurring blurred vision, rainbow vision (look at the lights around the colored circle) and other symptoms, you should promptly go to the hospital for examination. 3, eye wind: also known as “retinal vascular obstruction”, often sudden and painless, mainly due to the cold vascular constriction caused by the blockage of bleeding. Usually people with high blood pressure, diabetes or high cholesterol need to be extra careful. If there is blurred vision, or even sudden loss of vision in one eye, you must see an ophthalmologist as soon as possible, depending on the situation for retinal laser treatment. 4, tears in the wind: some people suffering from trachoma, chronic conjunctivitis and inflammation of the tear ducts, due to inflammation caused by the narrowing or obstruction of the tear ducts, tear drainage obstacles, encountering cold wind will also be “more than tears”, this situation requires attention. If not treated in time, it can lead to eye infections, leading to lacrimal sacculitis, keratitis and other eye diseases. 5, allergic conjunctivitis: hot and cold season, the temperature changes quickly, easy to trigger allergic conjunctivitis. Usually the patient himself has allergic constitution, when the weather turns cool, the eyes become sensitive, easily red and itchy, there will be a slight secretion produced. Giving the patient antihistamine drops can improve the situation and give the eyes more rest. 6. Subconjunctival hemorrhage: When the weather becomes cold, blood vessels will contract and blood pressure will rise. If the elasticity of blood vessels is poor, they will easily rupture and cause subconjunctival hemorrhage. Usually subconjunctival hemorrhage is not painful, but when the eyes suddenly become congested and blood clots appear in the white part of the eyes, we should be careful if it is subconjunctival hemorrhage. 7, make-up eye disease: in winter the skin is prone to dryness, many young women like to trace eyeliner, brush mascara, if not pay attention to the quality of cosmetics, especially in winter is easy to cause bacterial infections, including corneal fungal disease, corneal burns, conjunctivitis are several common “make-up eye disease”.