1, ultraviolet rays not only harm the skin, the eyes are more lethal. Experts pointed out that the eyes under long-term exposure to ultraviolet radiation without any protective measures, the chances of developing cataracts are three times higher. The wavelength of ultraviolet light determines its penetrating power and damage site, short-wave ultraviolet light penetration power is weak, will harm the surface layer of the cornea, and eye pain, photophobia, tearing symptoms; long-wave ultraviolet light penetration power is strong, will lead to cataracts, retinal macular degeneration and other blinding eye disease. Tip: In the spring and summer, the cloud cover is thin area, high altitude and near the equator, ultraviolet rays are stronger, noon when you go out must remember to wear shades and wide-brimmed sun hat; and water, snow and other areas will also be due to reflection and cause strong ultraviolet, swimming and skiing must have the appropriate protective measures. 2, sugar As the metabolism of sugar in the body requires a large amount of vitamin B1, and reduce the body’s calcium content. Vitamin B1 deficiency will aggravate the degree of myopia, while the reduction of calcium will make the eye wall less elastic and promote the development of myopia. Tip: Reduce the intake of sugar. 3, the computer all monitors are inevitably released electromagnetic radiation, generate glare, collect static electricity …… These have brought varying degrees of damage to the eyes. One of the most threatening to the eyes is the “glare”, which is caused by the reflection of the light source in the smooth surface of the object. So when people concentrate on the screen for a long time, the eyes need to constantly gather, so the number of blinks will be less than half of the usual, our eyes are naturally getting dry. Tip: To completely abandon the computer is, of course, impossible, the only thing we can do is to work for an hour or half an hour to let the eyes rest for a moment. 4, cosmetics Cosmetics may be the eyes of the “drugs. Ophthalmologists said that the use of cosmetics due to improper use of conjunctivitis, keratitis, eyelid edema is rife. Many eye makeups, in particular, are difficult to remove completely. These mascaras, eyeliners, powders, etc. adhere to the eyelids and eyelashes and will slide into the eye when blinking, which can easily lead to various eye inflammations. Tip: Remove makeup thoroughly, use a cotton swab dipped in makeup remover to brush from the root of the eyelashes from the inside out, and insist on washing your eyes every day. 5, garlic ancient medical books: garlic “because of the taste of pungent gas can be passed, the nature of the cold can be avoided, and all the poison, all the evil, all the wet, all the heat, all the accumulation, all the summer heat, not from this all removed”, but “its gas smells, eat more gas consumption of blood, loss of eyes faint God. Therefore, there is a folk saying that “garlic is harmful to the eyes only for the benefit of a hundred”. Modern medicine also confirms this. Alcohol will speed up blood circulation throughout the body, often causing blood congestion in the eyes, damaging the retina and causing “wine amblyopia”. For patients with diabetes and hypertension, drinking alcohol can also lead to bleeding in the fundus of the eye, which can lead to vision loss in mild cases and blindness in severe cases. In addition, long-term heavy drinking can cause digestive and absorption impairment, a lack of B vitamins in the body, which can lead to conjunctivitis, optic neuritis and other disorders. Tip: Do not drink too much alcohol, which is important for eye health. 7, smoke in the corneal surface, there is a very thin layer of tear film, which plays a moistening, protective role for the cornea, and smoking smoke generated by smoked tear film, will make the tear film frequently rupture, its protective and nutritional role is weakened, thus endangering the health of the cornea. According to research, smoke contains more than 750 chemical components, including many toxic substances. These toxic substances can directly affect the metabolic function of eye tissues, and the occurrence of painless, progressive vision loss and color vision disorders in both eyes. Tip: not only do not smoke themselves, but also away from the smoking environment. 8, microwave oven If the microwave oven is used for too long or the microwave oven door is loose, it is possible to cause microwave leakage. Leaking microwaves can harm our bodies, and the first to bear the brunt is the lens of the eye. If the eyes are exposed to microwave radiation for a longer period of time than the safety regulations, vision will be reduced, and even cause cataracts. Studies have found that when the human eye is close to the microwave oven leaks about 30 cm, will suddenly feel blurry.