In daily life, if you know some knowledge about eye hygiene, your eyes will never be exhausted. The following is a common and fairly simple common sense of eye hygiene for daily use.

1, the distance between people and TV should be more than 5 times or more than 3 meters of the diagonal length of the screen.

2. Watch TV with ambient lighting.

3. Play less video games and avoid being addicted to the Internet.

4. When reading and writing, the light should be bright, soft and stable.

5, don't write words that are too small and too dense, so as not to look too close and increase the adjustment of the eyes.

6. Keep the writing distance 30 ~ 35cm.

7. Don't study for a long time, 0.5 ~ 1 hour is appropriate to prevent visual fatigue.

8. Do eye exercises every day to improve eye blood circulation and regulation.

9. Insist on physical exercise and do more outdoor activities.

10, reasonably arrange the work and rest time.

1 1, ensure full and comprehensive nutrition, correct partial eclipse and eat more fruits and vegetables.

12, wear qualified glasses for ametropia.

13, people with high myopia should not do strenuous activities to avoid rage, so as to avoid retinal detachment from like eyes. Do friends who have been in contact with computers for a long time often feel tired eyes? If you check according to the following steps, there will be great changes.

Step 1: Adjust the computer screen.

Adjusting the contrast and brightness of the screen is helpful to reduce the eye problems caused by the computer, because the screen flashing too fast or too slow will cause eye discomfort.

Screen scanning frequency should be greater than 60 times per second. If the scanning frequency is too slow, it will cause the screen to flicker and further cause eye discomfort.

Suggestions for improvement: Adjust the contrast and brightness of the computer screen to keep the scanning frequency greater than 60 times per second.

Step 2: Adjust the eye position.

The average person's normal reading angle is about 40 degrees. Generally speaking, looking directly at the computer screen is an unnatural angle, so it is easy to cause fatigue, sore eyes and even headaches.

Suggestions for improvement: Adjust the height of the seat and the angle of the computer screen so that the center of the screen is between 7 degrees and 10 degrees below the eyes.

Step 3: Avoid reflection.

In the light part, the principle is to see clearly and comfortably. Also pay attention to the light sources that cause reflection, such as lights, fluorescent lamps, sunlight, reflective surfaces, luminous bodies, etc., and also pay attention to the position of the screen, so as not to see reflection.

Generally speaking, indoor light is three times brighter than the screen.

Step 4: 3b vision care Formula.

While adjusting the computer, we should also pay attention to the common sense of self-protection. As long as you follow the following "3B" eye protection methods, your eyes will be bright.

Blink: blink more.

Staring at the computer for a long time will reduce blinking and lead to dry eyes, so blink more and keep your eyes moist.

Breathe: take a deep breath

Staring at the computer screen for a long time often leads to a temporary stop of breathing, so keep breathing smoothly and relax.

Rest: rest

Every time you work or read 10 minutes, look far 10 seconds to relax your eyes. Every time you work or read 1 hour, you should rest for 5 minutes, and you can do some eye exercises to rest your eyes. You should get up every 2-3 hours to have a cup of tea and exercise after work or reading.

For example, eye care tips (for teenagers)

The sparkling autumn water is a beautiful and moving word to describe the eyes. Eyes are also called "windows to the soul". Teenagers are in a period of long body and long knowledge, and they also use their eyes the most, so it is particularly important to maintain their eyes. Here are a few simple and easy ways to protect your eyes. Young friends may wish to try them.

Raise your eyes

Usually pay attention to a balanced diet, ensure the supplement of trace elements and vitamins, eat more fresh vegetables, fruits and seafood, and eat less sweets and sweets.

As far as the eye can see

In the morning, naturally stand in the fresh air. First look straight at the distant target with your eyes, and then slowly withdraw your eyes. When you reach a distance of 35 cm from your eyes, shift your eyes from near and far to the original target. Repeat this several times, and then do deep breathing exercise, which is good for regulating eye function.

Iron eye

Every morning or before going to bed, take a sitting or standing posture, close your eyes, quickly rub your palms, and then press them on your eyes quickly. At this time, your eyes will feel a warm current. Repeated several times can dredge the meridians and improve the blood circulation of the eyes.

Bath eye

Wash your eyes with hot water, hot towel or steam, 1 ~ 2 times a day, about 5 minutes each time. You can also wash your face and drink hot water. You can also use traditional Chinese medicines such as chrysanthemum and bamboo leaves to take juice, smoke your eyes while it is hot, and then wash your eyes with this medicine after the water temperature is high, which has the effect of clearing away heat and improving eyesight.

Mu Yun

Standing in front of the window and staring at the upper, lower, left and right corners of the window clockwise or counterclockwise can relax muscles, activate eyes and improve eyesight. Do it for 5 ~ 10 minutes every morning and evening.

Bumu

Chinese medicine believes that the liver can see things with blood when it opens its eyes, and the eyes of animals can fill its eyes and fill its organs. Therefore, eating more animal liver and eyes can effectively protect eyes, such as pork liver and egg soup, fried pork liver with onion, stewed animal eyes with qi, stewed pig eyes with lean meat, fish head with mushrooms, etc., which can be eaten often. Just like the eye care tips (food) in our daily diet, some vegetables are of great benefit to the maintenance of physiological functions such as eyes.

spinach

According to an American survey, eating a lot of spinach can reduce the risk of blindness in old age. This is due to carotenoids-pigments in green leafy vegetables and yellow vegetables.

A research team of Harvard Medical School pointed out that people who eat a lot of these vegetables every day can reduce the risk of macular degeneration by 43%.

Retinal macular degeneration is an eye disease related to the elderly. The patient's retinal center degenerated and his central vision gradually lost.

The research team led by Dr. John Thayer from the Department of Ophthalmology and Epidemiology compared the eating habits of 876 people aged between 55 and 80, of whom 356 were macular degeneration patients and 520 were not. They found that the more carotenoids are absorbed, the smaller the risk of macular degeneration. Lutein and zeaxanthin, two carotenoids in green vegetables, are the most effective.

tomato

Tomatoes are rich in nutrition. Each catty contains 2-8g of protein, 4g of fat1.4g, 9g of carbohydrate, 300mg of calcium, 2mg of phosphorus174mg, 2mg of iron, and vitamins A, B 1, B2, C, P, PP, etc. In addition, it also contains fruit acid, citric acid and lycopene. The content of vitamin PP is the first among fruits and vegetables, the content of vitamin A is fifteen times that of Xun, and the content of vitamin C is equivalent to two and a half kilograms of apples, three kilograms of bananas and four kilograms of pears.

Generally speaking, vitamin C in vegetables loses 5% after three minutes of cooking and 30% after fifteen minutes of cooking. Vitamin C in tomatoes, although cooked, is less and less lost than other vegetables. This is because tomatoes are acidic and vitamin C is protected in acidic environment. According to calculations, eating two or three tomatoes a day can meet the vitamin and mineral needs of one day.

Medicinal use of tomatoes: tomatoes with good color, fragrance and taste can not only be eaten, but also be used medicinally. According to the medical profession, tomatoes are sour and sweet in taste, flat in nature and non-toxic. They have the functions of clearing away heat and toxic materials, cooling the liver and relieving summer heat, and quenching thirst. They are suitable for hypertension, bloody roots, stomach heat, bitter taste, fever, polydipsia and heatstroke.

The medical function of tomato lies in its ingredients. For example, vitamin P can protect blood vessels and prevent hypertension; Vitamin PP can protect skin health, treat furuncle, maintain the normal secretion of gastric juice and promote the formation of red blood cells. Because of the high content of vitamin C, doctors often let patients with gingivitis, dental diseases, nosebleeds and bleeding diseases eat more tomatoes in summer. Vitamin A can maintain skin elasticity, promote bone calcification, play an important role in the formation of tooth tissue, and can be used to prevent rickets, night blindness and dry eye in children. Malic acid and citric acid can help gastric juice digest fatty substances. Eating greasy food and tomatoes can not only help digestion, but also prevent indigestion. Tomatoes also have diuretic effect, and eating tomatoes is good for kidney disease. It is said that there is also a substance called copper chloride in its juice, which has an auxiliary treatment effect on liver disease. Lycopene can inhibit some bacteria and can be used for oral inflammation. In hot days, tomato slices can also be boiled into tea, which has the effect of clearing heat and preventing heatstroke.

carrot

Carrots have two characteristics. First, the sugar content is higher than that of ordinary vegetables, and it is fragrant and sweet. Second, it is rich in carotene, which can be converted into vitamin A after participating in the human body. Vitamin A can maintain the health of eyes and skin. People suffering from rough skin, night blindness, dry eye and rickets in children need vitamin A, especially in growing children.

In fact, all kinds of vegetables contain different amounts of carotene, but they are not as rich as carrots, and they are easy to be lost and not easily absorbed by the human body. Carotene contained in carrots can remain unchanged at high temperature, so it is easy to be absorbed and utilized by human body. The darker the color of carrots, the more carotene they contain, far exceeding other vegetables.

Carrots also contain vitamin C, protein, fat and some minerals. Carrots contain monosaccharides and polysaccharides, among which starch sugar and sucrose can be converted into glucose and fructose after being digested in the gastrointestinal tract, which are absorbed by the human body and become one of the sources of human heat.

Carrots are sweet, crisp and refreshing, and can replace fruits when eaten raw. Simply stir-fry or stew or wrap jiaozi with meat; It is also delicious to cook porridge with rice, millet and corn.

Tips for protecting your eyes (nutrition)

According to research, experts found that ultraviolet rays in light can form free radicals to destroy tissues, which often leads to cataracts and age-related macular degeneration of eyes, both of which may eventually lead to blindness. To prevent cataracts, we can start with increasing the intake of vegetables, especially carotene containing vitamins C and E, which can greatly reduce these diseases.

The doctor stressed that the innermost layer of tears has mucus structure, which is responsible for the uniform distribution of tears and fully moisturizes the conjunctiva and cornea. If it is lacking, the eyes are easily tired and congested. This layer of mucus mainly depends on the supply of vitamin A and carotene, and is secreted by the goblet tissue of conjunctiva. Therefore, proper vitamin A supplementation is helpful to bid farewell to the troubles of eye fatigue.

Conjunctiva and cornea are located on the surface of eyeball and are often damaged by external stimuli. The conjunctiva is covered with capillary plexus. If the vascular toughness is insufficient, it will often lead to subconjunctival bleeding due to excessive tension. Vegetables and fruits are rich in vitamin C, which can quickly heal wounds.

In short, vitamins that are good for eyes, A and E in fat-soluble vitamins and B and A in water-soluble vitamins are all important. But eye food is enough, and the concept that the more you eat, the more you make up is wrong. Therefore, it is better to take vitamin tablets to adjust eating habits. On the one hand, it can avoid the side effects caused by excessive vitamins, on the other hand, it can't eat happily and healthily.

Vitamin A mainly exists in egg yolk, milk, cod liver oil and yellow-green vegetables, especially yellow-green vegetables. Carotenoids and carotenoids are rich, such as tomatoes, carrots, papaya and Qingjiang cuisine, which are very helpful to the eyes.

Vitamin E mainly exists in nuts and wheat germ, but when vitamin E is supplemented, special attention should be paid to the level of uric acid value to avoid gout attack. Vitamin B family, which is rich in milk, lean meat, eggs and yeast products. In particular, it is a nutritional health product, which is rich in vitamin B 1 and beneficial to nervous system diseases.

Finally, the content of vitamin C is the highest in dark green or yellow-red vegetables and fruits, such as guava, lemon and citrus. The nutrients of these fruits are easily destroyed, so it is better to eat them raw.

Common sense of eye protection (dry eye)

Do you often have this situation: your eyes are stinging, itchy, dry and sandy, and sometimes you can't open your eyes in the morning because of too much mucus, and so on. Then it is very likely that you are suffering from "modern dry eye syndrome", also known as dry keratitis, which refers to a series of eye symptoms caused by the pathological changes of the tear film of the eye due to various reasons, which makes the cornea and conjunctiva not moist normally. With the modernization of office equipment and household appliances, and the change of people's diet structure, there are more and more dry eyes, from primary and middle school students to middle-aged and elderly people.

The main causes of dry eye are as follows.

1) Wear contact lenses.

2) Do not pay attention to eye hygiene

3) The number of blinks during work, study and driving is reduced.

4) air drying

5) Dust pollution

6) Use sedatives

For these reasons, the function of tear film will be affected, and the cornea and conjunctiva will lose moisture and smoothness, resulting in conjunctiva dryness. If not treated in time, it may cause corneal opacity, ulcer and even blindness.

How to prevent dry eye in daily life? People who use their eyes too much should pay attention to eye hygiene, blink more, close their eyes, overlook, do eye exercises to relieve eye fatigue, eat more foods rich in vitamin A, and go to the hospital for examination in time if the eyes have abnormal symptoms such as dryness and foreign body sensation. Don't take medicine by yourself, so as not to delay your illness.

How to prevent dry eye, we should pay attention to the following points.

1) Have a normal lifestyle, get enough sleep and don't stay up late;

2) Balanced diet, no partial eclipse; Eat more fruits and vegetables containing vitamins A, C and E, and eat less fried food;

3) Let your eyes rest adequately, avoid long-term use of eyes and excessive fatigue, and pay attention to the number of blinks;

4) Pay attention to the cleanliness of eyelids and eyelashes when washing your face. Hot compress with hot towel can reduce fatigue and increase tear secretion;

5) Don't wear contact lenses for too long, and take them off if you feel uncomfortable;

6) If you have eye discomfort, please consult an ophthalmologist for treatment; Never buy Chinese patent medicines for long-term use.

Correct maintenance methods of glasses

A pair of suitable and good glasses cannot be separated from the correct maintenance methods. Maintaining glasses is to care for your eyes to a certain extent. Directly affect the service life and vision health of glasses!

1. Take it off: Please hold the temple with both hands and take it off in the parallel direction on both sides of your cheeks. along with

Prevent the lens frame from being deformed due to imbalance, resulting in the optical centers of the two lenses not being in the horizontal position, which will affect the vision.

2. Folding: Generally, the design of frames starts with folding the left temple. first

Folding the right temple is easy to cause deformation of the mirror frame.

3. Lens cleaning: dry-wipe the lenses that are easy to wear. (It is recommended to wash the dust with clean water for new lenses.

Then drop some neutral cleaning liquid such as detergent and shower gel, rinse with clear water, and then put water Xiaoping Guan on the glasses. Generally, new glasses won't get wet. Just dry the glasses frame. It is recommended to rinse with clean water and absorb the water with a paper towel, and then try to wipe it with a special glasses cloth. Please be sure to hold the edge of the glasses frame on the side where the glasses are wiped by hand, and gently wipe the glasses, so as not to damage the glasses frame or lens by excessive force. If the lens is dirty, it is recommended to clean it with a little detergent, shower gel and other neutral cleaning solutions, then rinse it with clear water and dry it. Please deal with all kinds of dirt on the lens in time to prevent the lens from falling off due to further damage.

4. Placement: When you don't wear glasses, please wrap them with glasses cloth and put them in the glasses case. If it's temporary

Please put the convex surface of the glasses upward to avoid wearing the most important central part of the lens, which will affect the visual clarity. At the same time, glasses should avoid contact with corrosive substances such as insect repellent, toilet cleaning supplies, cosmetics, hair gel and medicine S, and avoid long-term direct sunlight and high temperature (above 60 degrees Celsius), otherwise it will easily lead to deterioration, deterioration and discoloration of lenses and frames.

5, regular adjustment: the deformation of the frame will burden the nose and ears, and the lens is easy.

It's loose It is recommended to go to a specialty store for plastic surgery regularly.

6. Precautions:

* Please don't use glasses during strenuous exercise, so as not to break the lenses due to strong impact, causing eye and face injuries;

* Don't use worn lenses to prevent vision loss caused by scattered light;

* Please don't look directly at the sun or glare, so as not to hurt your eyes.

Everyone must protect his eyes. People who don't wear glasses must protect their eyes. (It's a little inconvenient to wear glasses) People who wear glasses should also protect their eyes to prevent the degree from deepening!