1. Gaze at a distance:
Find a meadow or green tree 1 meters away: green is imaged in front of the retina because of its short wavelength, which promotes eye adjustment and relaxation, relaxes the ciliary muscles of the eyes and reduces eye fatigue. Don't squint, don't blink all the time, get rid of distractions, concentrate and stare for 25 seconds, and recognize the outline of grass leaves or leaves. Then put the left palm slightly higher than 3 cm in front of the eyes, and read the palm prints one by one from beginning to end, about 5 seconds. Look at the palm print, then stare at the distant grass or leaves for 25 seconds, and then look at the palm print. Do it 2 times in 1 minutes, three times a day, and increase the number of trainings if your eyesight drops badly.
2. crystal exercises
● blink of an eye: hold your cheeks with your hands, and let your eyes rotate 1 times in the order of up, down, left and right, and then rotate counterclockwise and clockwise for 1 times.
● Find a scene 3 meters away (such as calligraphy and painting on the wall, etc.), and at the same time raise your left hand slightly higher than your eyes and straighten it (about 3 cm). After seeing the hand prints clearly, look at Qingyuan again, and move your eyes between them as quickly as possible, and go back and forth for 2 times.
3. Massage exercises
Sit or lie on your back, close your eyes naturally, and then massage the acupoints around your eyes in turn. It requires accurate acupoint selection, gentle manipulation, and a feeling of local soreness.
1. Massage Tianying Point: Gently massage Tianying Point (under the brow and at the outer upper corner of the eye socket) with both thumbs.
2. Squeeze Jingming point: gently press Jingming point with the thumb of one hand (the nose root is close to the inner canthus of both eyes), press it down first, and then squeeze it up
3. Rub Sibai point: press Sibai point in the center of the cheek with the index finger (the next horizontal finger is directly below the middle of the lower edge of the orbit).
4. Press the temple and wheel to scrape the eye socket: press the temple with your thumb (a horizontal finger backward between the brow tip and the outer corner of your eye), and then gently scrape the inner surface of the second section of the eye socket with your bent index finger, from the inside up -> Outer top -> Outside -> Under the inner part, the acupoints around the eye socket, such as the waist of the bamboo, the empty silk and bamboo, the sparse pupil, the back of the ball and the weeping, are massaged. It is beneficial to pseudomyopia or to prevent the deepening of myopia.
Reference: 13:9 on December 2, 24.
User Bose Sugar: The TV can be looked after, and the computer can take care of it, as long as it is 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 lighting, and so on. If you feel nearsighted, you might as well let your child play table tennis for a month. Recently, I read that it has a preventive effect on myopia.
Netizen peter's mother: Persisting in letting children practice rolling their eyes 2 times a day can improve myopia. His child's vision was .8, but now it has returned to 1.2 after several months of doing it. It is also said that this kind of exercise can defend against near vision and is more effective than eye exercises. You might as well let the children try. Yesterday, I went to see an ophthalmologist in the expert clinic of Capital Institute of Pediatrics (peter has chalazion in his eyes). Many children went to check their eyesight and prepare glasses. Alas, seeing the anxious eyes of parents, I am really worried that this is my son's future. Therefore, under the present pressure of study, firstly, children should take part in more sports and outdoor activities, increase the chances of overlooking and eye rolling, and reduce the use of screens and eyes at close range. It is obvious that children wear glasses more now than in our time. Is this also the progress of the times?
Netizen Dan Qing 64: I recently bought a preventive alarm for my son, which is hung on his ear. When the head is close to the desk, it will make a sound. I think it is quite scientific. I have bought a shelf for correcting sitting posture before, but it affects the writing effect, and my son is uncomfortable to use it.
for people who often watch computers-prevention and treatment of dry eye
Our eyes, especially the cornea, often rely on the lacrimal gland to supply water, and by blinking, the tears turn into a layer of "tears" and spread to the canthus membrane to keep our eyes comfortable. The so-called "dry eye" refers to a symptom of 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 there are more and more young people and white-collar workers who often contact computers, televisions and game consoles in some cities. According to a survey by relevant departments, 9% of people who work in front of computers 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 gum; Acid eyes, itchy eyes, fear of light and vision loss. 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
There is a tear layer between the upper and lower eyelids of people, which contains substances to protect the eyes from infection. When people blink, the tears are evenly distributed in the eyeball, and the dust on the conjunctiva is cleaned to keep the eyes bright. Generally, people's tear secretion decreases with age, so the incidence of dry eye in the elderly is higher. There are many factors that can cause dry eye, including: the decrease of tear secretion after middle-aged and elderly people, the symptoms of the eye itself, such as corneal degeneration, blepharitis, trachoma, etc. Various immune diseases and connective tissue diseases, such as rheumatoid arthritis, lupus erythematosus, xerostomia, arthritis syndrome (mostly in middle-aged or elderly women); Caused by certain drugs, such as contraceptive pills, sleeping pills, sedatives, cough medicines, stomach medicines, etc.; It can also be caused by vitamin a deficiency.
In recent years, the trend of xerophthalmia is obvious, mainly because in modern life, young people have more and more contact with TV and computer for work and entertainment, and face the fluorescent screen for a long time, lacking timely blinking or letting their eyes rest, which affects the secretion of tears in their eyes; Or long-term use of some eye drops, such as vasoconstrictive 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 in one direction for a long time. Therefore, the best way to avoid eye fatigue is to rest properly and avoid continuous operation. If you are an optician, it is very important to match a pair of suitable glasses. People over 4 years old, it is best to use bifocal lenses, or wear glasses with low degree when typing. Working posture and distance are also very important. Try to keep a distance of 6cm, and adjust the most appropriate posture so that the line of sight can be kept down about 3o. Such an angle can relax the muscles and muscles and minimize the area of the eyeball surface exposed to the air.
(2) Those who have been engaged in computer operation for a long time should eat more fresh vegetables and fruits and increase the intake of vitamins A, B1, C and E. In order to prevent corneal dryness, 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, tomatoes and fresh fruits. 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. Vitamin B1 can nourish nerves, and green leafy vegetables contain a lot of vitamin B1. 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 prevent the fluorescent screen from reflecting or being unclear, the computer should not be placed on the opposite side or back of the window, and the ambient lighting should be soft. If there is a window behind the operator, the curtains should be drawn to avoid the eye fatigue caused by the bright light directly shining on the screen and reflecting bright images. 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 as often as usual, thus reducing the secretion of lubricants and enzymes in his eyes. You should blink more and rest your eyes at least once every 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 regulation 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 can be increased, the nerve nutrition can be improved, and the excessive congestion in the brain and eyeball can be eliminated. Because of the smooth circulation, the intraocular regulating muscles can eliminate the accumulated metabolites, thus achieving the purpose of eliminating eye fatigue.
Therefore, it is necessary to remind everyone that when you concentrate on the computer screen, the number of times you blink will decrease. It is recommended that 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 go to medical treatment as soon as possible.
China Net June 23
How do people who need to improve their eyesight and overuse their eyes choose health food?
The eyes are visual organs, which are stimulated by light, so that the body can perceive the image, color and movement of objective objects. The main part of the eye is the eyeball. The reason why the eye can see objects is that the transparent stroma of the cornea, aqueous humor, lens and vitreous body of the eyeball twists and turns the external light onto the retina. The retina can feel the stimulation of light because it contains two kinds of photoreceptor cells, namely cone cells and rod cells. Under the action of light, a series of chemical changes take place in the photoreceptor cells. Through these chemical changes, light energy can be converted into electrical energy, which causes nerve impulses and is transmitted to the visual center to produce vision.
In medicine, the eye's ability 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 vision loss. 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 neuritis, chronic glaucoma and toxic amblyopia; ⑥ Circulatory blindness, occasionally seen in severe uremia and retinal arteriosclerosis, is mostly temporary; ⑦ Tumor of vein or retina and retinal detachment; 8 acute glaucoma; Pet-name ruby acute iriditis; Attending intraocular hemorrhage, 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, physical weakness, anemia, endocrine disorders, excessive fatigue and so on. Health food for improving vision function plays a certain role in regulating and improving the physiological mechanism of myopia through the above links.
1. Foods that can improve eyesight
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 daily diet, foods that can improve vision are:
(1) Foods rich in vitamin A, which is closely related to normal vision. If vitamin A is insufficient, the regeneration of rhodopsin is slow and incomplete, the dark adaptation time is prolonged, and in severe cases, night blindness is caused. If vitamin A in the diet continues to be deficient or insufficient, dry eye will appear, and the disease will further develop into corneal softening and corneal ulcer, as well as corneal folds and Pitt's spots. The best food sources of vitamin A are various animal livers, cod liver oil, fish eggs, poultry eggs, etc. Vitamin A contained in carrots, spinach, amaranth, alfalfa, sweet potatoes with red hearts, 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 growth, and the calcium demand in the body is relatively increasing. If we don't pay attention to calcium supplementation, it will not only affect the bone development, but also reduce the elasticity of the developing eyeball wall-sclera and increase the internal pressure of the lens, which will 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 and dark green vegetables.
(4) Chromium deficiency is easy to cause myopia, and chromium can activate insulin and make islets exert the maximum biological effect. For example, if the chromium content in human body is insufficient, it will hinder the function of insulin in regulating blood sugar, increase the osmotic pressure of plasma, increase the osmotic pressure of eyeball lens and aqueous humor, and increase the diopter, thus inducing myopia. Chromium mostly exists in brown rice and wheat bran, and the liver, grape juice and nuts of animals are also rich.
(5) zinc, zinc deficiency can lead to visual impairment, and zinc is mainly distributed in bones and blood in the body. Zinc is also contained in corneal epidermis, iris, retina and lens. Zinc participates in the substitution and transportation of vitamin A in the eye, maintaining the normal tissue state of retinal pigment epithelium and maintaining normal vision 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, aspartic acid, etc., is sweet and salty, and the "Zhenzhu Powder" prepared with pearl powder and borneol and amber can inhibit the formation of cataract.
(7) kelp, kelp contains 1/3 of mannitol besides iodine. There is a thick layer of "white 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 treating acute glaucoma. Other seaweeds such as Undaria pinnatifida also contain mannitol, which can also be used as an auxiliary food for treating acute glaucoma.
2. Health foods that help to improve eyesight can increase nutrition and improve eyesight through diet, so we should eat more of the above foods. If we can choose appropriate health foods that can improve eyesight on the basis of daily diet, it can play a good role in adjuvant therapy. The optional health foods are:
(1) foods rich in vitamin A, such as Lycium barbarum products.
(2) It is rich in protein, peptides and some amino acids, such as taurine and nucleic acid.
(3) Health tea, granule or capsule containing cassia seed, chrysanthemum, hawthorn and pearl powder.
Reference: China Xunyi Drug Guide Network
Massage more to improve eyesight, massage more: Jingming point, Sizhukong point, temple point, fish waist point, Sibai point, Chengqi point and other points around the eyes.