For Shenma myopia? 5, for Shenma myopia?

Incorrect use of the eye, thickening of the lens. or genetics.

Speaking of myopia, many people may know that myopia is caused by an excessively long eye axis, but it is not clear why an excessively long eye axis causes myopia and what is the relationship between the eye axis and myopia.

So what is an eye axis?

If the eye is considered as an optical instrument, the axial distance between the innermost layer of the eyeball, which receives light, (the cornea), and the innermost layer that receives light, (retina), is the axis of the eye.

Normally, the eye axis grows gradually as the child's eye develops until the eye matures and the eye stops growing.

Just like height, from a small one at birth, to children, adolescents, and adulthood, it stops growing.

In the case of normal development of the eye axis, the light of distant objects will be focused on the retina, and distant objects can be clearly seen at this time, which is emmetropic.

If the eye axis is too long, when looking at distant objects, the light will focus on the front of the retina, and you will not be able to see distant objects clearly, which is myopia.

Therefore, children and adolescents with longer eye axes are more likely to be nearsighted in other conditions with similar eye conditions.

In addition, the average annual growth rate of the eye axis is also one of the indicators to judge whether the refractive development of children and adolescents is normal, and if the growth rate is too fast, it is more likely to develop myopia.

Eye development is an irreversible process, just like a "one-way street", the "car" on which the eye axle can only continue to move forward and stop, and cannot turn around or reverse.

Therefore, once myopia occurs, it can only continue to grow or tend to stop, and it will not decrease, nor can it be **. In addition, the longer the eye axis, the higher the degree of myopia, and the more likely it is to induce other ocular complications, such as retinal detachment, cataract, glaucoma, macular hemorrhage, degeneration, etc. Therefore, timely, effective and scientific prevention and control of myopia and control of eye axis growth are the top priorities of myopia patients!

The reason why people are short-sighted.

It's because of corneal problems.

And because of their own bad work and rest habits.

There is also the wrong way to cause things.

Unreasonable time spent near the eye, visual fatigue, and other internal and external causes can lead to the formation of myopia.

The main causes of myopia are:

1. The living environment, high-rise buildings rise from the ground, abandoned courtyard houses go to towers, the environment for close eye use is increasing, and the environment for long-distance eye use is decreasing.

2. Eye time, forced to study, play computer, watch TV, play Apple, the time of close eye use is increasing, and the time of long-distance eye use is decreasing.

3. Dietary collocation, junk food, carbonated drinks, sweet and greasy snacks are increasing, fresh vegetables and fruits are eaten less, plus antibiotic milk, gelatin jelly and other toxic foods.

4. Outdoor activities, the healthy growth of children is inseparable from running, jumping and jumping, and now the children's sitting and lying space time is increasing, and the activity venue and time are decreasing.

Therefore, if you care about the healthy growth of children, it is best to find ways to increase the number of things that are decreasing and reduce the number of things that are increasing.

So how do you get your myopic eye back to normal? Commonly used methods are:

1. Maintain adequate sleep, if you don't get enough sleep, it can directly affect your vision problems, so you must keep enough sleep.

2. Look at the distance to broaden your horizons, which is conducive to the recovery of eyesight, and you also need to carry out necessary eye exercises to relieve eye fatigue.

3. Rational use of eyes and avoid excessive use of eyes, we must pay attention to this, which is the key to vision recovery.

4. Don't watch TV or play with the computer for a long time, don't read in dim light and direct sunlight, don't stay in bed, ride in the car, and walk into the book to read.

5. Eat more things that are beneficial to the eyes and develop good habits, such as supplementing vitamin A, which can increase the finish of the cornea, make the eyes bright and look radiant.

6. Eat less sweets and high-sugar foods to reduce sugar intake.

7. Children under the age of 18 should also supplement vision nutrients in time to enhance the overall nutrition of the eyes and improve myopia. Generally, doctors recommend taking two packs of Leyan Vision Nutrients every day, and insist on taking them for a period of time, the degree of myopia will be reduced, and the vision will be improved, which will not affect the child's future education and employment.

Most people have myopia due to incorrect eye posture, as well as eye myopia caused by irregular eye habits, and a small part is due to genetics. However, no matter which one you choose, you should pay attention to the habit of using your eyes to avoid the phenomenon of rapid growth of your eyes.

Because of the proximity for a long time.

The eyes and the posture of the eyes are incorrect, the habits of the eyes are not standardized, resulting in eye loneliness and fatigue, forming myopia, and promoting the growth of myopia.

One of the main reasons for myopia is improper use of eyes, now many people read books, mobile phones and computers, many people are very close, and it takes too long, which is the main cause of myopia, there is no one. There are three ways to improve vision, one is through glasses correction, but the effect is not large, and not deepening is already the biggest effect. The second is through surgery**, which is effective quickly, but some people have more serious consequences in the later stage, and the use has been banned abroad, and the third is to recover through the exercise of the eyeball.

The downside is that it takes a few months to hold on**. But it's also the best way to do it. You can refer to the current effective stalk forest rejuvenation technique, and it is best to pay attention to the usual eye distance and eye duration.

Myopia is caused by excessive use of the eyes or wrong habits when using the eyes.

Causes of myopia.

The causes of myopia are complex, and there are many influencing factors, and the main factors are roughly divided into genetic factors, environmental factors and nutritional factors.

1.Genetic factors: According to a large number of survey data, the consensus conclusion is that high myopia is related to heredity, and there is a large difference between moderate myopia and less than moderate myopia.

The genetic type of high myopia is concluded by most survey data to be autosomal recessive. As a result, parents and offspring may not develop myopia at the same time. Heredity is often influenced by the objective environment, that is, the conditions of life, which makes it mutate, which increases the complexity of heredity.

2.Environmental factors: environmental factors are mainly close operation and poor working environment, which is the oldest theory, although there are still some controversies, but from a large number of domestic and foreign relevant research reports, it has been recognized that heredity and environment are the main reasons for the formation of myopia, and pointed out that environmental conditions are the objective factors that determine the formation of myopia.

1) Adjustment theory: The vast majority of myopia appears in adolescence, because the adjustment power of adolescent eyes is particularly strong, and they have a high degree of adaptability to work and study at close range, so they are not easy to get tired when they see close. However, if the ciliary muscle is over-tensed for a long time, the ciliary muscle will be fatigued or even spasm and accommodative myopia will appear, and if it is not eliminated in time, it can become irreversible true myopia.

or by other means affecting the elongation of the eyeball axis.

2) Divergence theory: When using the adjustment of close work, it is also necessary to strengthen the divergence function of both eyes turning inward at the same time, which can lead to the pressure of the eye muscle on the eyeball, which can cause the extension of the eye axis.

3) Environmental adaptation theory: In early childhood, the eyeballs are small, most of them are farsighted, and with the increase of age, the eyeballs increase to the state of emmetropia. Reading too much near up during this developmental process makes the eye myopic in order to adapt to this need for accommodation.

This theory has received many opposition, but it is a consensus that it is highly malleable during the development period and has an important impact on the development of myopia.

Other theories are not introduced, but it is worth mentioning that external factors such as lighting, reading posture, contrast, small and blurred characters, too close proximity, and long reading time can all affect the role of these factors.

3.Nutritional constitution theory: From some data analysis, the deficiency of trace elements such as cadmium, strontium and zinc and the weakness of physical constitution can also affect the occurrence of myopia, but there are different ways through which these factors affect myopia.

In short, it can be seen from the above that myopia can be caused by many factors, both external factors and internal physical factors, rather than a single factor.

Myopia is broadly divided into three degrees. In terms of clinical symptoms, the disease course is less than two years, the degree is less than 200 degrees, the visual acuity is above, and most of them are pseudomyopia; The course of the disease is more than four years, the degree is more than 400 degrees, and the visual acuity is below, and most of them are true myopia; Half-truths and half-false myopia in between.

From the analysis of the age of netizens, vision protection is not good and will continue to worsen. Glasses or laser surgery may be done and eye hygiene should be observed.

"Myopia occurs mostly because the anterior and posterior axes of the eye are too long (called axial myopia), followed by a strong refractive power of the eye (called refractive myopia). Myopia mostly occurs in adolescence, and genetic factors have a certain influence, but its occurrence and development are closely related to insufficient lighting, improper reading posture, and working in close proximity for a long time. Most myopia occurs in adolescents, and the degree of myopia deepens year by year during the developmental and growth stage, and it does not develop or develops slowly after maturity.

The degree of myopia rarely exceeds 6d, the fundus does not undergo degenerative changes, and the vision can be corrected with glasses, which is called simple myopia. Another type of myopia occurs earlier (between 5 and 10 years old), and the progress is very fast, and it continues to develop after the age of 25, and the myopia degree can reach more than 15 days, often accompanied by fundus changes, and the vision is not easy to correct, which is called degenerative myopia. In addition, it is customary to call myopia below 3 days mild myopia, those with 3 6 days are called moderate myopia, and those above 6 days are called high myopia. ”

1. There are three theories about the formation of myopia:

1. The theory of proximity (Chinese medicine ophthalmology believes that the eye can see when it gets blood, but it hurts blood when it sees for a long time);

2. The theory of constitution (Chinese medicine ophthalmology believes that the essence of the five internal organs and six internal organs are all focused on the eyes);

3. Genetic theory (Chinese medicine ophthalmology believes that if the congenital endowment is insufficient, the visual vision is unclear).

2. Prevent near-eye and protect eyesight

1. Good eye habits; (Don't overwork your eyes).

2. Healthy living habits; (Outdoor sports, physical exercise and recreational activities) 3. Reasonable eating habits. (Control sugary foods, eat more fresh vegetables, fish and shrimp and whole grains) Third, the question of "whether to wear glasses well or not to wear glasses for myopia" cannot be generalized.

Traditional Chinese medicine ophthalmology experts in Huashu Ophthalmology believe:

1. Glasses are actually just a tool, and since they are tools, they should be worn when needed. The human eye basically stops developing at about the age of 18, and if you wear it all the time during the development period, whether you look far or near, it is tantamount to shaping the eye, and it is not difficult to find the answer when we observe the watermelon that grows up in the triangular model.

2. After the age of 18, the eyes basically stop developing, and it can be worn often;

3. If you have high myopia above 600 degrees, you must always wear lenses with the appropriate prescription.

Fourth, it is proposed to go to a regular TCM ophthalmology hospital to adopt TCM**.

The value of TCM in the treatment of myopia is threefold:

1. Control the aggravation of myopia;

2. Prevent myopia complications;

3. Improve eyesight.

Chengdu Huashu Ophthalmology.

The main reason for children's myopia is that the attention is on reading books or watching television, computers and other close-range objects for a long time, and the brain will adjust the eye axis to become longer in order to adapt to the clear vision at close range, and slowly, the eyes see things more and more blurred, and the distance to see objects is getting shorter and shorter, which causes myopia.

From the perspective of Western medicine, the lens of the eye is simply deformed, and traditional Chinese medicine believes that high myopia and its macular degeneration are due to the lack of essence and blood in the liver and kidney, and the weakness of the spleen and qi are the main pathogenesis. After syndrome differentiation and treatment, the water and dampness are dissolved, the phlegm is cleared, and the function is restored.

Internal factors Genetic predisposition: Myopia has a certain genetic predisposition and is recognized, especially for high myopia. However, this tendency is not evident in general myopia.

For those with genetic factors, the age of disease is earlier, and it is more likely to be above. However, there are also people with high myopia and no family history. High myopia is an autosomal recessive inheritance, and general myopia is a multifactorial genetic disease.

Developmental factors: Babies have farsightedness due to their small eyeballs, but as they age, the eye axis gradually lengthens and develops normally until puberty. If it is overdeveloped, it will form myopia, which is called simple myopia and usually begins at school age.

Generally below. It stops developing around the age of 20. If the progression is rapid in early childhood, it will progress more rapidly by the age of 15 or 20 years, and then it will slow down, and this type of myopia is often higher than 20d, 25d, or 30d.

This type of myopia is called high myopia or progressive myopia or pathological myopia. This type of myopia can develop and degenerate in later life, so vision can gradually deteriorate, and glasses cannot correct vision. Myopia is rarely present at birth, but very few are congenital.

2.External cause. That is, environmental factors, people who are engaged in writing work or other close work, there are more myopia, and there are more myopia among adolescent students, and from elementary school.

From the fifth and sixth grades, the prevalence increases significantly. This phenomenon shows that the occurrence and development of myopia are very closely related to near work. Especially the adolescent eyeball, is in the stage of growth and development, the ability to adjust is very strong, the stretchability of the ball wall is also relatively large, reading, mailroom and other close work during the adjustment and aggregation effect, so that the external Ken muscle (mainly the medial rectus muscle) exerts a certain pressure on the eyeball, the intraocular pressure is also correspondingly increased, with the continuous increase of the operation, the frequency and time of adjustment and collection also gradually increase, the ciliary muscle and extraocular muscle are often in a state of high tension, and the excessive play of the regulatory role can cause ciliary muscle spasm, This causes temporary vision loss.

However, with rest or use of ciliary erosions, vision may improve and eventually recover. Therefore, some people call this nearsightedness functional myopia or pseudomyopia. However, under the long-term mechanical compression of the extraocular muscles, the sclera tissue gradually extends the ball wall, the eye axis is elongated, and the degree of myopia becomes deeper and deeper, and it can no longer be alleviated by atropine.

Especially in adolescence, not paying attention to visual hygiene is the direct cause of myopia. Not paying attention to the health of the whole body can contribute to the development of myopia.

The expert added: External factors - seeing things at close range for a long time make the ciliary muscle in the eyeball compress the lens for a long time, resulting in the lens cannot be restored (thicker than born), so myopia occurs.