What are the behaviors that do great harm to vision?

1, inseparable from electronic products, unrestrained Internet access.

With the popularity of computer lights and electronic products, some people are addicted to the Internet and surf the Internet for seven or eight hours every day. Even more. In the long run, people will have symptoms such as dry eyes, redness and visual fatigue, which will seriously endanger eye health. So I should keep a good posture when operating the computer, so that the upper edge of the screen is at the same height as my eyes, and my eyes look down at the screen horizontally or slightly. I will continue to operate the computer 1 hour and rest for 5- 10 minutes.

2. play mobile phone, Pad, etc. After turning off the lights.

The contrast between bright screen and dark environment is too big, which makes eyes tired and can cause accommodation spasm. Pupils dilate in the dark. A large amount of strong light entering the eyes will lead to an increase in intraocular pressure, which will lead to angle-closure glaucoma and may lead to permanent blindness. In addition, lying down and playing with a mobile phone has the greatest pressure on the eyeball. It is recommended to turn on the night mode and play the mobile phone continuously for no more than half an hour.

3. Tobacco and alcohol are inseparable and are often stimulated by second-hand smoke.

Alcohol can promote blood circulation and dilate the capillaries of the eyes. Drink too much, the capillaries will rupture easily, causing spots. However, smoking causes the oxygen content in the blood to decrease, and the retina of the eye is particularly sensitive to hypoxia. In the long run, the optic nerve fibers will degenerate and the macular area of the retina will shrink. At the same time, the smoke tar produced by tobacco combustion will lead to the decrease of vitamin B 12 in the body. Smoking will reduce vision, cause amblyopia, and even lead to blindness in severe cases.

4, often stay up late, lack of sleep

If you often work until 2-3 am and go to work at 8 am, then lack of sleep seems to break you down. Seize every opportunity, take a nap when you are free, keep your eyes fresh and healthy, and get rid of the troubles of bags under your eyes, dark circles and wrinkles.

5, unbalanced diet, improper dieting

An unbalanced diet and a wrong diet can also pose a threat to the eyes. Studies have pointed out that fresh vegetables and fruits are rich in vitamin E, vitamin C, carotene and zinc, which can prevent some eye diseases and wrinkles. If you go on a diet, it is right to reduce the intake of fat and starch, but at the same time, you must increase the intake of vegetables and fruits, but don't treat it as a dinner.

6. Always wear contact lenses and inferior sunglasses.

In hot summer, it is best to wear less contact lenses. Be careful not to wear contact lenses when taking a bath or bath. Otherwise, shampoo, shower gel, etc. It will pollute the lens and cause eye discomfort. Inferior sunglasses can not only effectively block ultraviolet rays, but also make more ultraviolet rays irradiate the eyes and increase the burden on the eyes.

7, reading posture is wrong

Incorrect reading and writing posture is an important cause of myopia and vision loss. When reading or writing, the chest is naturally straight. Pay attention to the distance between eyes and reading and writing objects, and keep it at about 30 cm. Don't read while lying down or walking. If it is difficult to correct in a short time, stretching the neck at least every hour is also an effective way to reduce the burden on the eyes.

8. Abuse of eye drops

Common eye drops are generally divided into lubricating type and vasoconstrictive type. Lubricating eye drops mainly play the role of supplementing eye fluid and relieving visual fatigue, while vasoconstrictor eye drops are usually used to deal with eye congestion, which is easy to form dependence after frequent use, and may rebound after stopping using them, making eyes redder.