Watching cell phones, watching computers, reading books, watching TV, playing games, do you always feel dry, sore, tired? In fact, this close fixation makes the extraocular muscles, especially the ciliary muscles, constantly in tension and is the main cause of visual fatigue.
However, you can know that the malnutrition of the eye caused by partial eclipse is also one of the causes of “eye fatigueâ€. It is like a man to do heavy work, and not let him eat, he will soon be exhausted.
The "myopia nutrition" believes that the lack of nutrition in the eyes of teenagers is one of the factors of myopia.
In addition, the “yin deficiency†quality of Chinese medicine constitution makes it easier to fatigue at close range. Has now entered nine, dialectical conditioning, is the time!
Interviewing Expert: Chief Professor, Department of Ophthalmology, Jiangsu Provincial Hospital of Traditional Chinese Medicine, Ph.D., Wang Yuliang
This edition was written by: Li Lanling
1 Eyes lack nutrition can cause myopia
The famous American ophthalmologist Henry Abrams discovered in 1979 that "the lack of nutrition in the eyes of teenagers is one of the factors that contribute to the development of myopia."
He found--
"The recovery from visual fatigue is proportional to the nutritional level of the eye."
"A child with adequate nutrition will see the eye for 120 minutes at close range, and the ciliary muscle will start to fatigue. If nutrition is lacking (mainly caused by partial eclipse), the ciliary muscle will be exhausted for 20 minutes."
This rationally explains why many children do not have long learning time, reading books are correct, but they will still be nearsighted; while some children learn long hours, but not shortsighted.
Children's eye development stage, people are in a stressful learning stage, if there is not enough nutritional support, ciliary muscle metabolites clear slowly, visual fatigue can not be promptly restored, ciliary muscles tend to continue to spasm, the formation of pseudo myopia.
During this period, the sclera has not been stereotyped, and the body feedback information, it is easy to induce the sclera to continue to prolong and form true myopia.
What about adults?
If malnutrition occurs, the ciliary muscles will soon be exhausted and the fatigue of the ciliary muscles will be very difficult to recover. This will result in overwork and illness and suffer from visible pain syndromes such as soreness.
2 Low head family should add lutein in time
In 2006, an authoritative research journal of the ophthalmic department “IOVS†published a study that confirmed the relationship between “yellow folic acid†and myopia.
The posterior pole of the retina is yellow because it contains a high concentration of lutein and is called the "macular spot."
The eye focuses on the fundus through the principle of a convex lens. The focus is on the macular area of ​​the retina. The large amount of lutein that accumulates on the macula can filter high-energy light and excessive blue light that damages the retina to protect the fundus from damaging light.
Lutein also consumes itself while absorbing harmful light. Scientists have tested that if the eye is continuously fixed for one hour, the lutein in the eye tissue will be reduced.
Lutein cannot be synthesized in the body, but the light consumes a large amount of lutein every day. When lutein is insufficiently supplemented, the macula is in an unprotected state. In order not to be poisoned, the body will use evasive methods -
That is, during the development of the eyeball, information feedback allows the sclera to continue to grow, keeping the macula away from the focus of light outside the near distance. As a result of this adjustment, the anteroposterior diameter of the eyeball becomes longer, visual imaging falls in front of the macula, and myopia appears.
After the development of eyeballs ceases, the eye will also regulate through the ciliary muscles, avoiding the light damage of the retina, which will lead to visual fatigue.
There is more blue light in the electronic screen light, which is also one of the reasons why the heads of families are more likely to look tired.
How to add? Eat dark green leafy vegetables, orange fruits and vegetables such as carrots and oranges, and egg yolks. The yellow color in the egg yolk mainly comes from lutein and zeaxanthin.
Traditional health mentions “枸æžâ€ to make eyesight because the content of lutein is particularly high!
3 Close relationship between myopia and chromium deficiency
New York University, Dr. Bei Lan study found that: Young people's myopia and the lack of trivalent chromium has a major relationship.
He believes that chromium deficiency in the human body can cause changes in the osmotic pressure of the blood, which in turn causes changes in the osmotic pressure of the lens and aqueous humor in the eye. When the osmotic pressure of the aqueous humor is lower than the osmotic pressure of the lens, the aqueous humor enters the lens through the lens capsule, causing the lens to become convex, the refractive power of the eye increases, and refractive myopia occurs.
He also found that heavy learning tasks (high school students, postgraduates) and fast-paced labor frequency (white-collar workers, gold-collar workers) increased urinary chromium excretion by 10-300%, almost depleting the body's chromium reserves.
While teenagers are in a period of vigorous development, there is much more demand for chromium, a trace element, than adults.
4 sweets make eyes easier to fatigue
Today's teenagers like to eat sweets and drink sweet drinks. How does this affect the eyes?
Vitamins B1 and B2 are important substances involved in the metabolism of nerve cells, including the optic nerve, and they also protect the conjunctiva and cornea. If vitamin B1, B2 deficiency or lack of, easy to make the eyes dry, conjunctival hyperemia, eyelid inflammation, photophobia, blurred vision to form visual fatigue, which became one of the incentives for myopia.
Calcium plays a major role in enhancing the toughness of the sclera. The adolescent's eyeball has not been stereotyped, such as calcium deficiency, the elasticity of the eye sclera will be reduced, under the influence of intraocular pressure, it may also develop axial myopia.
Vitamin B1 is a key enzyme in sugar metabolism. If you eat too much sweets and sweet drinks, excessive high-sugar foods will consume a lot of vitamin B1 during metabolism.
At the same time, the acidic substances produced by glucose metabolism need to react with alkaline elements such as calcium and chromium in the body, resulting in a relative reduction of calcium and chromium in the body!
How should you eat?
5 "Astheoric fatigue" food to various species
Expert advice: As the normal fatigue eat more coarse grains, grains, red and green vegetables, potatoes, beans, fruits and other foods rich in vitamins, protein and cellulose.
Why are varieties so diverse?
because--
Protein: The sclera contains a variety of essential amino acids that form the eye and shell. Lack of protein will reduce the elasticity of the sclera, and it will easily develop into myopia during development.
Zinc: Participate in the transmission and transport of vitamin A, and maintain the normal tissue state of the retinal pigment epithelium.
Molybdenum: It is an important component of the iris that constitutes the eye. The iris can adjust the size of the pupil to ensure that it is clear.
Vitamin C: is an integral part of the eye lens.
Vitamin A: It is an important raw material that constitutes the ocular photoreceptor. Many people do not like to eat carrots, and studies have shown that 70% of the vitamin A consumed by the body every day needs to be supplemented by the intake of carotenoids.
6 eat more coarse grains can ease the "astigmatic fatigue"
Why eat more coarse grains?
Chromium is mainly found in coarse grains such as corn, sorghum, and beans.
Vitamin B1 is widely found in seed coats and germs such as rice bran, wheat bran, and soybeans and yeasts.
Why eat less refined food?
When wheat flour is processed into refined powder, the loss of chromium is 87%; when brown sugar is processed into white sugar, the loss of chromium is 92%.
7 yin constitution eat cool and moist food
The “Yin Deficiency†quality of Chinese medicine constitution is more likely to look fatigued, and the proportion of myopia formed is also higher.
Yin and quality people, thin body shape, common hand, foot and heart heat, dry mouth and throat, dry nose, like cold drink, impatience, extroversion, lively, easy to use, winter intolerance summer and so on.
People with yin deficiency can eat more cool and moist foods such as black beans, black sesame, stew meat, rabbit meat, duck meat, lily, tofu, soy milk, pig's head, pork pith, white fungus, fungus, turtle, oyster meat, scallops, Sesame oil, tomato, grape, citrus, wolfberry, banana, pear, apple, mulberry, persimmon, sugar cane, etc.
Eat lamb, dog, pepper, onion, garlic and other warm and intense products.
Can also use traditional Chinese medicine for conditioning, now has nine, application of cream at the time!
Road Helmet Cover,Full Reflective Cover,Reflective Polyster Cover,Safty Road Helmet Cover
RFX+CARE Manufacturing Co.,Ltd. , https://www.rk-rfxcare.com