Eye drops are one of the most commonly used pharmaceutical preparations for the treatment of eye diseases. For many eye diseases, eye drops have a direct and rapid therapeutic effect. However, many people have no eye diseases, and they are used to taking eye drops frequently, or taking eye drops without being diagnosed with eye discomfort. Experts remind that this is all inappropriate, and the abuse of eye drops has many disadvantages.

According to Professor Sun He from Clinical Medical College of Heilongjiang University of Traditional Chinese Medicine, most eye drops contain not only therapeutic ingredients, but also antiseptic ingredients. If eye drops are often dropped, the bactericidal components will destroy the ocular surface structure and produce irritating symptoms. Antibiotic eye drops are widely used, including bacterial infection, viral infection, fungal infection and chlamydia infection. This kind of eye drops should be used according to the course of treatment under the guidance of a doctor. If antibiotics are used blindly for a long time, drug-resistant strains will be produced.

Mingmu Mingmu food

Mulberry: Mulberry is the mature fruit of Mulberry (a kind of aggregated flower and fruit), also known as Mulberry, Black Mulberry, Black Fruit, Black Fruit, Mulberry Fruit, Mulberry Fruit, Mulberry Date and Mulberry Granule. Mulberry contains glucose, fructose, malic acid, citric acid, tannic acid, carotene and vitamin B? 1, vitamin b? 2. Nicotinic acid, vitamin C, vitamin D, calcium, phosphorus, iron, zinc, stearic acid, oleic acid, rutin, anthocyanin and other ingredients. ?

Traditional Chinese medicine believes that mulberry is sweet in taste and cool in nature, and has the functions of nourishing yin and enriching blood, promoting fluid production and moistening intestines, enhancing muscle and pleasing color, and enriching the purpose of invention. Can be used for treating yin deficiency and blood deficiency, dizziness, insomnia, tinnitus, premature graying, rough skin, body fluid exhaustion, and intestinal dryness. ?

Modern medical research has found that mulberry can treat diabetes, anemia, hypertension, hyperlipidemia, coronary heart disease, neurasthenia and other diseases. Has effects in improving blood supply to skin (including scalp), nourishing skin, whitening skin, and blackening hair. ?

Mulberry seeds are used to boil cream, cook porridge and soak wine. As a therapeutic prescription, it has the functions of strengthening the body and beauty beauty. ?

Mulberry is a good fruit and medicine for middle-aged and elderly people, but children should not eat more mulberry. Because mulberry seeds contain trypsin inhibitor and tannic acid, it will affect the body's absorption of iron, calcium, zinc and other substances. In addition, people with spleen deficiency in loose stool should not eat mulberries. ?

● Human milk: human milk, sweet and flat. Contains protein, fat, carbohydrates, vitamin A and vitamin B? 1, vitamin b? 2. Vitamin C, calcium, phosphorus, iron and trace elements such as copper, zinc, nickel and cobalt. Human milk is the most nutritious of all kinds of milk. Enriching blood, moistening dryness, moistening skin and moistening skin. Human milk is a beauty product, which can make people healthy, prolong life and resist aging. Wang Mengying, a medical scientist in Qing Dynasty, summarized the functions of human milk as "enriching blood, replenishing fluid, replenishing essence, transforming qi, promoting granulation, calming nerves, improving intelligence, strengthening bones and muscles, benefiting viscera, invigorating stomach and spleen, and improving hearing and eyesight". According to Qianjin Diet Prescription, "regulating the five internal organs makes people fat and happy."

● Rehmannia glutinosa: Rehmannia glutinosa is a processed product of Huanggen, a herb of Scrophulariaceae. Usually, wine, Amomum villosum and dried tangerine peel are used as auxiliary materials. Rehmannia glutinosa is repeatedly steamed until it turns black inside and outside, and its texture is soft, sticky and oily. Due to different planing and processing, there are Radix Rehmanniae Preparata, Radix Rehmanniae Charcoal and Dadi Huang Zhi. ? Radix Rehmanniae Preparata contains Radix Rehmanniae, alkaloids, fatty acids, vitamin A, sucrose, fructose, glucose, arginine, lysine, glutamine, leucine, isoleucine, catalpol, stigmasterol and β-sitosterol. ?

Traditional Chinese medicine believes that Radix Rehmanniae Preparata is sweet in taste and slightly warm in nature, and belongs to liver and kidney meridians. It has the effects of nourishing blood, nourishing yin, promoting fluid production, nourishing marrow, blackening hair and beard, moistening skin and caring skin, and can be used for treating blood deficiency and sallow, dizziness and headache, irregular menstruation, deficiency of kidney yin, and soreness of waist and knees. NFDA9？ Nocturnal emission is soft and thin, hot flashes and night sweats, thirst quenching due to internal heat, deficiency of essence and blood, premature gray hair, tinnitus and deafness. "Compendium of Materia Medica" introduces Radix Rehmanniae Preparata and says: "Tonify bone marrow, grow muscles, produce essence and blood, and make up internal injuries of five internal organs. ..... long service, hearing and eyesight, black hair and beard, and a peach blossom for a hundred days, three years old. " Rehmannia glutinosa said: "Nourish kidney water, seal up bone marrow, benefit blood vessels, nourish true yin, improve hearing and eyesight, blacken hair and beard hair, and treat all diseases of liver and kidney yin deficiency and fatigue." ?

Modern medical research has found that Radix Rehmanniae Preparata has the functions of regulating blood sugar and blood pressure, strengthening heart, stopping bleeding, enriching blood, diuresis, improving renal function and caring skin.

● Astragalus complanatus: Astragalus complanatus is a mature seed of leguminous plants (Tribulus terrestris), also known as Tribulus terrestris, Tribulus terrestris and Tongshayuan. Semen astragali Complanati is rich in selenium, copper, iron, zinc, manganese, fatty oil, tannin, vitamin A-like substances and other components. ?

Traditional Chinese medicine believes that the seeds of Astragalus complanatus are sweet and warm. Entering the liver and kidney meridians has the functions of tonifying kidney, solidifying essence, nourishing liver and improving eyesight, moistening skin and strengthening waist and bones. Can be used in beauty beauty for treating lumbago due to kidney deficiency, impotence, nocturnal emission, dizziness, leukorrhagia, and vision loss. "Materia Medica from the New" said: "Astragalus complanatus enters the liver and kidney meridians, tonifying kidney, strengthening yin, benefiting essence, improving eyesight, promoting granulation and strengthening skin. Treat leukorrhagia and hemorrhoids. Solid performance. " "Materia Medica Meets the Original" says: "Tribulus terrestris in Shayuan can tonify asthenia, tonify kidney and treat low back pain, and it needs drugs to drain semen and relieve fatigue." "Herbal Yan Hui" said: "Tribulus terrestris in Shayuan is also a medicine for tonifying kidney and astringing essence. ..... tonifying the kidney, strengthening the yang and having children. " ?

Modern medical research has found that Semen Astragali Complanati is rich in selenium, zinc and vitamin A, which can protect the skin and keep it smooth and soft. For example, zinc can participate in the synthesis of melanin, keep skin smooth and shiny, and keep hair shiny and soft. Selenium has anti-aging effect on skin and can reduce skin wrinkles. ?

Patients with kidney-yang deficiency leading to sexual apathy, impotence, premature ejaculation, insomnia and wet dream's disease often appear vain or haggard. If you take Semen Astragali Complanati, you can not only improve the symptoms of kidney-yang deficiency and rejuvenate, but also have obvious effects of strengthening muscles, pleasing skin, blackening hair and hairdressing. ?

Shayuanzi is warm and has the effect of aphrodisiac, so it is not suitable for people with yin deficiency and strong fire, and it is easy to aphrodisiac.

● Chrysanthemum: Chrysanthemum is the flower head of chrysanthemum in Compositae, which was called "Chrysanthemum" in ancient times. Chrysanthemum is named after its color, such as white chrysanthemum and Huang Juhua; Some are named after taste, such as stevia and bitter chrysanthemum; There are also those named after their native places, such as Hangju in Hangzhou, Huaiju in southern Hunan and Chuanju in Sichuan. There are many kinds of chrysanthemums. It is said that there are at least 3,000 kinds in China. Generally, white chrysanthemum with single leaf and sweet taste is used as medicine and health care; Chrysanthemum indicum is bitter in taste and yellow in color, and is often used for clearing away heat and toxic materials. ?

Chrysanthemum can be used to make wine and chrysanthemum wine, which is cool and sweet, and it is a good product for strengthening the body and prolonging life. Poets of all ages praised chrysanthemum wine. Tao Yuanming's poem: "Swallows have no shadow, and geese come with sound." Wine can cure all diseases, and chrysanthemum can cure aging. "Praise the efficacy of chrysanthemum wine in eliminating diseases and prolonging life." The Chronicle of Jingchu contains: On September 9th, Pei Cornus ate lotus ears and drank chrysanthemum wine, which can prolong life. ?

According to modern chemical analysis, chrysanthemum contains volatile oil, inulin, adenine, choline, stachydrine, vitamin A, vitamin B and so on. It has antibacterial and antipyretic effects, and also has significant preventive and therapeutic effects on cardiovascular diseases. Chrysanthemum also has a definite effect in preventing and treating senile diseases. Chrysanthemum has the functions of dispelling wind and clearing heat, calming liver and improving eyesight, and regulating blood vessels. It can be used to treat wind-heat cold, headache, dizziness, red eyes, blurred vision, coronary heart disease, hypertension, arteriosclerosis, hyperlipidemia and other senile diseases, and can receive good results. ?

Chrysanthemum has many medicinal functions, and chrysanthemum tea is a refreshing drink with medicinal functions. Take chrysanthemum 10g, brew with boiling water, and drink tea instead of wine frequently, which can dispel wind and clear heat, calm the liver and improve eyesight, and has preventive and therapeutic effects on dizziness, headache and tinnitus; If 10g chrysanthemum and 3g tea are brewed together, it can also treat early hypertension. Take chrysanthemum 10g, add hawthorn and honeysuckle 10g, and replace tea with water to decoct or grind into tea, which has the functions of reducing blood fat, lowering blood pressure and losing weight, and is suitable for patients with obesity, hyperlipidemia and hypertension. Regular drinking by middle-aged and elderly people can prevent the occurrence of the above diseases. ?

There are many ways to eat chrysanthemum, such as cold salad, deep frying, stuffing, cake, cake and porridge. Stir-fried with chrysanthemum tender seedlings, crispy and delicious, can be appetizing; Cooking porridge with chrysanthemum can clear the heart and improve eyesight; Using chrysanthemum as soup is not only a special food, but also has the special effects of strengthening the body and prolonging life.

● Lycium barbarum: Lycium barbarum is a mature fruit of Lycium barbarum, a solanaceae plant. In ancient times, it was called screwdriver, beet seed, medlar and medlar. Its prescription is called medlar, medlar and medlar. ?

Lycium barbarum is sweet and flat, and enters the liver and kidney meridians. Its ingredients are provitamin A and vitamin B? 1, vitamin b? 2, nicotinic acid, vitamin C, linoleic acid, acid pulp, etc. It has the effects of tonifying kidney, replenishing essence, nourishing liver, improving eyesight and resisting aging. Pharmacological experiments show that Lycium barbarum has the functions of lowering blood sugar, lowering blood lipid, lowering blood pressure, resisting atherosclerosis, inhibiting fat deposition in liver cells, promoting liver cell regeneration and enhancing human immunity. Lycium barbarum is suitable for asthenia, impotence and nocturnal emission, soreness of waist and legs, soreness of feet and knees, dizziness and tinnitus caused by deficiency of kidney yin. It is also suitable for eye diseases such as blurred vision, night blindness, decreased vision and tears in the wind caused by liver yin and blood deficiency. "Yan nian Fang" says that Lycium barbarum can "replenish deficiency, promote granulation, benefit color and make people fat". It is said that Lycium barbarum is an anti-aging drug that nourishes yin and produces sperm, and it has no disadvantages of cold, heat, dryness and greasy. The tonic of Lycium barbarum lies in nourishing yin, nourishing yin and enriching blood and benefiting eyes. Because "the taste is heavy and pure, it can replenish yin; There is yang in the yin, so it can replenish qi, so nourishing yin will not lead to yin decline and help Yang Can make Wang Yang. " Lycium barbarum can obviously enhance human sexual function, so the ancients said, "Don't eat Lycium barbarum when you go out."

● Animal liver: Animal liver refers to common pig liver, sheep liver, cow liver, rabbit liver and chicken liver. Because the functions of these animals' livers are similar, they are described in a unified way. Animal liver is rich in nutrition, which generally contains glycogen, protein, carbohydrates, vitamin A and vitamin B 12? , calcium, phosphorus and iron. It can improve the human hematopoietic system and promote the production of red blood cells, hemoglobin and hemoglobin. Therefore, the liver is a good product for strengthening the body and enriching the blood. All kinds of liver functions are similar. Pig liver is sweet, bitter and warm in nature. It has the functions of nourishing liver, nourishing blood and improving eyesight. It is suitable for blood deficiency, chlorosis, night blindness, edema and beriberi. Sheep liver is sweet, bitter and cool, and has the effects of nourishing blood, nourishing liver and improving eyesight. It is suitable for dark eyes, bird's eyes, obstruction, tuberculosis, etc. caused by deficiency of liver and blood. In a word, animal liver, regardless of cold and heat, has the effects of nourishing blood, nourishing liver and improving eyesight, and is a good product for enriching blood and benefiting liver. ?

● Euryale ferox: also known as chicken head rice, goose head rice and water chicken head. Its taste is sweet, astringent and flat. Contains vitamin C, vitamin B, iron, calcium, protein, starch, fat, etc. Has that effect of invigorating kidney, arrest sperm, invigorating spleen, regulating stomach, and caring skin. "Southern Yunnan Materia Medica" said: "Nourishing kidney and consolidating essence, and taking dark hair for a long time to improve eyesight." ?

Turning your eyes can improve your eyesight.

When people reach middle age, their left eye vision is 0.3, and their right eye 1.0. After more than 20 years of early and late eye movement exercise, my binocular vision in the last 3 years is 1.5. The method is: sit on the bed or chair, turn your eyes to the left for 3 times, then look straight ahead for a while (meditation for 5 times), turn your eyes to the left for 3 times, and look straight ahead for a while. Turn it twice every morning and evening, without interruption, and stick to it for a long time, that is, see the effect. (Grain Rain)

A method of vision care for the elderly

Old friends are old and have good eyesight. Q: When I wash my face every morning (the water temperature should be higher to avoid scalding my skin), I first soak the towel and hot compress my eyes and temples for about a minute or two, for decades. When my wife died, I was in Lacrimosa all day, thinking that I was blind, and my pain was unimaginable. So after applying this method every day, I feel very comfortable with my eyes. This is also a blessing. (Lu Jingyi)

Chrysanthemum attracts attention.

2003-6- 16

For friends who often have to face computers, the health of their eyes will be greatly threatened. Some people drink a lot of water before going to bed to moisten dry eyes, but the next morning, their eyes will swell. Here is a popular method for friends, which can effectively protect eyes and avoid the embarrassment caused by eye edema-applying clean cotton dipped in chrysanthemum water around eyes can quickly eliminate edema.

Chrysanthemum is very effective in treating dry eyes, fatigue and blurred vision. China has known since ancient times that chrysanthemums can protect eyes. Therefore, in addition to smearing your eyes, you may wish to soak some chrysanthemum tea often. If you can drink three or four cups of chrysanthemum tea every day, it will not only make the symptoms of eye fatigue disappear, but also help to restore your vision.

There are many kinds of chrysanthemums. People who don't know the doorways often choose chrysanthemums with big white flowers. Actually, this is a misunderstanding. The real choice should be small, ugly and yellow. It is best to drink chrysanthemum tea without tea, just soak the dried chrysanthemum in water or boil it. Hot drinks in winter and iced drinks in summer all taste good.

A way to keep the elderly from being dazzled

My neighbor's aunt is over 60 years old, and she is dazzled. Her old mother told me a method a few years ago: look forward, the eyeball is turning three times, and then turn three times backwards. Do eye exercises after you finish, and do them twice a day. She persisted for several years, and now she can wear a needle without glasses and read books and newspapers. (Su Zhang)

Chrysanthemum soaking in water to treat pinkeye (Zhang Xiaojun)

Public Network-Qilu Evening News 2003-06-0208: 21:24 qlwb20030602

I got pink eye when I was swimming last summer. My eyes are burning, and I can't even read books or newspapers. At home, the old mother quickly took out the chrysanthemum, soaked it in boiling water, and smoked her eyes with water first. When the steam disappeared, she poured out half of the chrysanthemum water for me to drink and the other half washed my eyes with gauze. Three or four times a day, the chrysanthemums are soaked and replaced with new ones. After two days of treatment, my pinkeye will be cured.

Lycium barbarum is a kind of medicine with strong medicinal properties. The ancients once thought that it could make people live forever. Traditional Chinese medicine believes that it can enhance liver and kidney function and increase body fluid. Suitable for fatigue, lumbago, knee pain, dizziness, headache and other symptoms.

The recommended method for winter tonic is porridge: 20 grams of medlar, 60 grams of rice, one egg and one onion. Grind Lycium barbarum into powder, pour 3 cups of water into a frying pan, and fry until the water is halved. Soak rice in cold water for 30 minutes, pour it into the pot, start to cook porridge with medlar, add eggs and chopped green onion while turning off the fire, and stir to serve. This product can nourish yin and kidney, nourish liver and improve eyesight, and has good weight loss effect.

Four exercise methods to protect eyesight

First, the blink method.

Choose a quiet place, or sit or stand, relax, clear your mind, open your eyes, keep your head and neck still, and turn your eyes alone. First, stare directly below, slowly turn left, then turn directly above, turn right, and finally return to directly below. Turn clockwise nine times like this. Then turn your eyes from down to right, up, left and down again, and turn them counterclockwise for another 6 times. Do it four times in all. Every turn, the eyeball should reach the limit as much as possible. This blinking method can exercise eye muscles, improve nutrition and make eyes flexible and bright.

Second, the eye breathing concentration method

Choose a place with fresh air, or sit or stand, relax, look straight ahead, slowly inhale the air, then open your eyes wide, pause for a moment, then exhale the air slowly, then close your eyes slowly, and do it for 9 times in a row.

Third, the eye ironing method

This method is best to sit, relax, close your eyes, and then quickly rub your palm to make it warm. Cover your eyes with your hands when it is hot. After the heat dissipates, suddenly take your hand away and open your eyes hard at the same time. This can promote the blood circulation and metabolism of your eyes 3 ~ 5 times.

Fourth, eye washing method

Disinfect the washbasin first, then pour in warm water, adjust the water temperature, put your face in the water, open your eyes in the water, move your eyes up and down, left and right for 9 times, and then rotate them clockwise and counterclockwise for 9 times. At first, water will enter the eyes, making them feel uncomfortable, but with the rotation of the eyeball, the eyes will gradually feel comfortable. When doing this action, if you feel difficult to breathe, you might as well lift your face from the washbasin and take a deep breath outside. This method can wash away harmful substances and dust in the eyes, and is also effective for mild cataract, and can improve the degree of ametropia of astigmatism, hyperopia and myopia.

China Education News 20065438+0 August 1 1 3rd edition.

Lycium barbarum-tonifying kidney and improving eyesight

Lycium barbarum is a kind of medicine with strong medicinal properties. The ancients once thought that it could make people live forever. Traditional Chinese medicine believes that it can enhance liver and kidney function and increase body fluid. Suitable for fatigue, lumbago, knee pain, dizziness, headache and other symptoms.

The recommended method for winter tonic is porridge: 20 grams of medlar, 60 grams of rice, one egg and one onion. Grind Lycium barbarum into powder, pour 3 cups of water into a frying pan, and fry until the water is halved. Soak rice in cold water for 30 minutes, pour it into the pot, start to cook porridge with medlar, add eggs and chopped green onion while turning off the fire, and stir to serve. This product can nourish yin and kidney, nourish liver and improve eyesight, and has good weight loss effect.

Is there any good preventive method for primary school students' myopia?

Www.sina.com.cn 20041213: 09 Sina parenting

Netizen Persian sugar: TV can be managed, and computers can also be managed, as long as they are controlled within a reasonable time. I think reading is more eye-consuming than watching TV and computer, so the most important thing is to use eye hygiene, pay attention to posture, pay attention to light and so on. If you feel nearsighted, let your child play table tennis for a month. Recently, it has been seen that it has a preventive effect on myopia.

Netizen Peter's mother: insisting that children practice rolling their eyes 20 times a day can improve myopia. His child's vision used to be 0.8, but now it has returned to 1.2 after several months. It is also said that this kind of exercise can prevent myopia and is more effective than eye exercises. You might as well let the children try. Yesterday, I went to the specialist clinic of Capital Institute of Pediatrics to see an ophthalmologist (Peter has chalazion in his eyes). Many children go to check their eyesight and prepare glasses. Alas, seeing my parents' anxious eyes, I am really worried that this is my son's future. Therefore, under the current pressure of study, firstly, children should participate in sports and outdoor activities, increase the chances of overlooking and rolling their eyes, and reduce the use of screens and eyes at close range. Obviously, there are more children wearing glasses nowadays than in our time. Is this also the progress of the times?

Netizen Dan Qing 0604: I recently bought a preventive alarm for my son and hung it on my ear. When the head is close to the desk, it will make a sound. I think it's quite scientific. I bought a shelf for correcting sitting posture before, but it affected the effect of writing, and my son was uncomfortable with it.

For people who often watch computers-prevention and treatment of dry eye.

Our eyes, especially the cornea, often rely on lacrimal glands for water supply. By blinking, tears become a layer of "tears" and spread to the cornea to keep the eyes comfortable. The so-called "dry eye" refers to a symptom of leaving tiny scars on the eyes due to the decrease of tears or the decline of lacrimal gland function. In the past, dry eye, cataract, glaucoma and other diseases were mainly common eye diseases of the elderly, but now it is found that more and more young people and white-collar workers often contact computers, televisions and game machines in some cities. According to the investigation of relevant departments, 90% of people who work in front of the computer for more than 3 hours every day have eye problems. This so-called "computer vision syndrome" is a manifestation of dry eye.

1. Clinical symptoms of dry eye

The common symptoms of dry eye are dry eyes, burning pain and more gums; Acid eyes, itchy eyes, fear of light, decreased vision. Other symptoms include headache, irritability, fatigue and difficulty in concentration. In severe cases, corneal softening and perforation will occur, and conjunctival congestion can be seen during examination.

2. Causes of dry eye syndrome

There is a layer of tears between the upper and lower eyelids, which contains substances to protect the eyes from infection. When people blink, tears are evenly distributed on the eyeball, cleaning the dust on the conjunctiva and keeping the eyes bright. The average person's tear secretion will decrease with age, so the incidence of dry eye in the elderly is higher. There are many factors that cause dry eye, including: the decrease of tear secretion after middle-aged and elderly people, and the symptoms of the eyes themselves, such as corneal degeneration, blepharitis and trachoma. Various immune diseases and connective tissue diseases, such as rheumatoid arthritis, lupus erythematosus, xerostomia, arthritis syndrome (more common in middle-aged and elderly women); It is caused by certain drugs, such as birth control pills, sleeping pills, sedatives, cough medicines, stomach medicines, etc. ; It may also be caused by vitamin A deficiency.

In recent years, the trend of dry eye is obvious, mainly because in modern life, young people have more and more contact with TV and computers for work and entertainment, and they face the fluorescent screen for a long time, lacking in blinking or letting their eyes rest in time, which affects the secretion of tears in their eyes; Or long-term use of some eye drops, such as vasoconstrictor eye drops, is also easy to form dry eye.

3. How to prevent dry eye?

(1) The best way to effectively prevent dry eye is to develop the habit of blinking more. Professionals believe that dry eye is a stress-type disease, and the problem lies in the eyes staring at one direction for a long time. Therefore, the best way to avoid eye fatigue is to rest properly and avoid continuous work. If you are an optician, it is very important to match a pair of suitable glasses. People over 40, it is best to use bifocal lenses, or wear glasses with low degree when typing. Working posture and distance are also important. Try to keep a distance of 60cm, adjust the most suitable posture, and keep the line of sight down about 30o. Such an angle can relax muscles and minimize the area of the eyeball surface exposed to the air.

(2) Long-term computer operators should eat more fresh vegetables and fruits, and increase the intake of vitamins A, B 1, C and E. In order to prevent dry cornea, dry eyes, decreased vision and even night blindness, computer operators should eat more foods rich in vitamin A, such as bean products, fish, milk, walnuts, vegetables, Chinese cabbage, water spinach, etc. Vitamin c can effectively inhibit cell oxidation. The main functions of vitamin E are: lowering cholesterol, removing garbage in the body and preventing cataracts. Walnuts and peanuts are rich in vitamin E, and vitamin B 1 can nourish nerves. Green leafy vegetables contain a lot of vitamin B 1. Drink green tea properly every day, because lipopolysaccharide in tea can improve the hematopoietic function of the body, and tea also has the function of preventing radiation damage.

(3) In order to avoid the fluorescent screen from reflecting or being unclear, the computer should not be placed on the opposite or back of the window, and the ambient lighting should be soft. If there are windows behind the operator, curtains should be drawn to avoid eye fatigue caused by bright images reflected by direct light on the screen. Usually, the average person blinks less than 5 times per minute, which will make his eyes dry. When a person works in front of a computer, he blinks only one-third of the usual frequency, thus reducing the secretion of lubricants and enzymes in his eyes. You should blink more and rest at least once an hour.

(4) In order to reduce the dryness of eyes, corneal nutrient solution can be properly used at eye points. Such as: Befu Shu eye drops, Xiao Laiwei eye drops and some artificial tears. In addition, eye exercises can also relax eye adjustment and reduce visual fatigue. The essence of eye exercises is self-massage, that is, by self-massaging the acupoints and skin muscles around the eyes, the blood circulation in the eye socket is increased, the nerve nutrition is improved, and the hyperemia of the brain and eyeball is eliminated. Because of the smooth circulation, the intraocular accommodation muscle can eliminate the accumulated metabolites, thus achieving the purpose of eliminating eye fatigue.

So it needs to be reminded that when you concentrate on the computer screen, the number of blinks will decrease. I suggest you blink more to ensure that the "tear film" can disperse water to the cornea to prevent dry eyes. If you suspect that you have dry eye, you should see a doctor as soon as possible.

China Com in June 2003

How do people who need to improve their eyesight and overuse their eyes choose health food?

Eyes are visual organs, stimulated by light, which make the body perceive the images, colors and movements of objective objects. The main part of the eye is the eyeball. The reason why the eyes can see objects is that the transparent matrix of cornea, aqueous humor, lens and vitreous body of the eyeball distorts and turns the external light to the retina. The retina can feel the stimulation of light because it contains two kinds of photosensitive cells, namely cone cells and rod cells. Under the action of light, a series of chemical changes have taken place in photoreceptor cells. Through these chemical changes, light energy can be converted into electrical energy, causing nerve impulses and transmitting them to the visual center to produce vision.

In medicine, the ability of the eye to finely distinguish the shape of an object, that is, the ability to distinguish the minimum distance between two points, is called vision. There are many reasons for poor eyesight. They are: ① various types of ametropia, including hyperopia, myopia and astigmatism; ② lens opacity, that is, cataract; ③ corneal opacity; ④ vitreous opacity and hemorrhage; ⑤ optic nerve diseases, such as optic nerve atrophy. Optic neuritis, retrobulbar optic neuritis, chronic glaucoma and toxic amblyopia; ⑥ Circulatory blindness, occasionally seen in severe uremia and retinal arteriosclerosis, is mostly temporary; ⑦ Vein or retinal tumor and retinal detachment; 8 acute glaucoma; Pet-name ruby acute iriditis; Attending intraocular bleeding, etc. Among them, myopia is the most common, which is caused by many reasons, such as poor learning environment, incorrect reading and writing posture, too long reading time, weakness, anemia, endocrine disorders, excessive fatigue and so on. Health food for improving visual function can adjust and improve the physiological mechanism of myopia through the above links.

1. A food with eyesight improving effect

To protect eyesight and prevent eye diseases, we need to start from many aspects, among which paying attention to nutrition is also helpful to improve eyesight. In the daily diet, foods that can improve eyesight are:

(1) Foods rich in vitamin A are closely related to normal vision. If vitamin A is insufficient, the regeneration of rhodopsin is slow and incomplete, and the dark adaptation time is prolonged, which can cause night blindness in severe cases. If vitamin A in the diet continues to be deficient or insufficient, dry eye will appear, and the condition will further develop into corneal softening and corneal ulcer, as well as corneal folds and Pitt spots. The best food sources of vitamin A are various animal livers, cod liver oil, fish eggs and poultry eggs. Vitamin A contained in carrots, spinach, amaranth, alfalfa, red sweet potatoes, pumpkins, green peppers and other vegetables can be converted into vitamin A in the body.

(2) Foods rich in vitamin C can reduce the damage of light and oxygen to the lens of eyes, thus delaying the occurrence of cataracts. Foods containing vitamin C include persimmon pepper, tomato, lemon, kiwi fruit, hawthorn and other fresh vegetables and fruits. (3) Calcium, calcium is related to eyeball composition, and calcium deficiency can lead to myopia. Teenagers are at the peak of their growth, and the demand for calcium in their bodies is relatively increasing. If you don't pay attention to calcium supplementation, it will not only affect bone development, but also reduce the elasticity of the developing eyeball wall-sclera, increase the internal pressure of the lens, lead to the elongation of the anterior and posterior diameter of the eyeball, and lead to myopia. Foods containing more calcium mainly include milk and its products, shellfish (shrimp), bone meal, beans and bean products, egg yolk, dark green vegetables and so on.

(4) chromium, chromium deficiency is easy to cause myopia, chromium can activate insulin, so that islets can play the greatest biological effect. For example, the lack of chromium in human body will hinder the function of insulin in regulating blood sugar, increase the osmotic pressure of plasma, lead to the increase of osmotic pressure and diopter of eyeball lens and aqueous humor, and thus induce myopia. Chromium is mostly found in brown rice and wheat bran, and it is also abundant in animal liver, grape juice and nuts.

(5) Zinc, zinc deficiency will lead to visual impairment, and zinc is mainly distributed in bones and blood in the body. Corneal epidermis, iris, retina and lens also contain zinc. Zinc participates in the replacement and transportation of vitamin A in the eyes, maintains the normal tissue state of retinal pigment epithelium and maintains normal visual function. Foods containing more zinc include oysters, meat, liver, eggs, peanuts, wheat, beans and miscellaneous grains.

(6) Pearl, which contains more than 95% calcium carbonate and a small amount of minerals such as magnesium oxide and aluminum oxide, and contains a variety of amino acids, such as leucine, methionine, alanine, glycine, glutamic acid and aspartic acid. Pearl is sweet, salty and cold. The "Zhu Zhen Powder" made of pearl powder, borneol and amber can inhibit the formation of cataract.

(7) kelp. Kelp contains 1/3 mannitol in addition to iodine. There is a thick layer of "frost" on the surface of dried kelp, which is mannitol in kelp. Mannitol has diuretic effect, which can reduce intraocular pressure and has a good effect on the treatment of acute glaucoma. Other seaweeds such as Undaria pinnatifida also contain mannitol, which can also be used as an auxiliary food to treat acute glaucoma.

2. Health foods that help improve eyesight can increase nutrition and improve eyesight through diet, so eat more of the above foods. If we can choose appropriate health food that can improve our eyesight on the basis of daily diet, it can play a very good role in adjuvant therapy. Optional healthy foods are:

(1) Foods rich in vitamin A, such as medlar products.

(2) It is rich in protein, polypeptide and some amino acids, such as taurine and nucleic acid.

(3) Health tea, granule or capsule containing cassia seed, chrysanthemum, hawthorn and pearl powder.

References:

China medical treatment and drug guidance network

Massage more to improve eyesight, massage more: Jingming point, Sizhu point, temple, Yuyao point, Sibai point, Chengqi pocket and other points around the eyes.