Causes and prevention of myopia, causes of myopia

The cause of myopia is that it is usually a fixed look at a thing within 50cm for more than an hour for a long time, and it is not green, and some are even accompanied by a white flashing ,..More than 80% of the current white energy-saving lights are faintly flickering. Of course, these flickering lights also include TV, computer, mobile phone mp4 and other electronic products, which are harmful to eyesight, of course, there is usually a picky eater, lying down to read, walking and playing with mobile phones or reading.

These are all important factors that lead to myopia. Having said all this, of course, it is something to pay attention to,..For example, watching TV, computers, mobile phones, books, these things at night should not exceed 50 minutes at a time, and then rest your eyes for ten minutes, you can close your eyes and rest for a minute or two, and then do eye protection ,..exercises

During the day, you can also see more green plants in the distance, and try to eat less MSG, spicy, yesterday, roasted, food, and carbonated drinks. If these small conditions can be achieved, then myopia will naturally become betterYou can eat more carrot-based foods.

It is caused by having to read words and things at close range for a long time, and as for the prevention, it is to keep a distance from computers and televisions, books, etc., when reading.

The commonly used correction methods are:

1. Get enough rest.

Don't be tired of using your eyes, use your eyes at close range for 40 minutes in a row, pay attention to looking into the distance and rest for at least 10 minutes; Combine work and rest to ensure adequate sleep!

Second, the "posture" should be right.

Don't use your eyes up close in too strong or too dark light! Don't lie down and read! Don't read in a non-static state! Such as sitting in a rickety car, walking.

Fourth, it is necessary to be "nutritious".

Pay attention to dietary nutrition, often eat Leyan vision nutrients, supplement the lutein, anthocyanins and zeaxanthin that the eyes have been consuming, and eat less sweets and fatty foods!

Fourth, it is necessary to check on time.

For adolescents with myopia, take the child to the hospital every six months for professional dilated eye refraction and long-term follow-up.

If it is pseudomyopia, it will gradually recover, and if it is true myopia, it will gradually control or improve the vision.

1.Heredity 2Spending too much time with your eyes 3. Doing eye exercises 4. Watching less greenery.

Genetic factors, environmental factors, can cause myopia.

There are two main factors that cause myopia: the first is genetic. The second factor is long-term, high-volume close-up eye use.

Genetic factors are very important. The incidence of myopia in China is very high, if both parents are highly myopic, the genetic probability of a child with high myopia is basically more than 90.

The second is the acquired factor, which refers to the long-term close proximity and a large amount of eye use. Nowadays, children have very few opportunities to see far away, and at the same time, the time of contact with computers is very long, and many children participate in early education classes in advance, learning art, piano, painting, etc. from an early age. These activities require delicate eye use and long periods of time.

Even if a child does not have the genetic factors of myopia, it is easy for the child to become myopic in adulthood.

Ophthalmologist Shi Yongli Profile: Director of the Department of Ophthalmology, working in a tertiary hospital for more than 10 years, good at cataract, glaucoma, pterygium surgery and various ocular surface diseases, dry eye syndrome, keratitis and pigmentitis, fundus disease, various complex eye diseases, systemic diseases, ocular complications and difficult diseases.

There are many causes of myopia, as long as you consider that it is excessive use of eyes, such as reading a book, watching TV, looking at your phone in too much light or in a dim place, etc.

What are the causes of myopia? Reading for too long and too close.

The main characteristic of myopia is that it can see clearly near but not clearly, and its causes are genetic factors and acquired factors. Genetic factors are mainly related to familial genes; Acquired factors are mainly caused by too long time spent near the eye and less outdoor activities. Therefore, it is recommended to reduce the time spent near the eye and increase the time spent outdoors to prevent myopia.

The first reason is that myopia has genetic factors, especially high myopia, which has a certain heredity for the offspring, the second reason is that the eyes are used for too long, some children read and write homework, watch TV for more than three hours, the eyes can not get a good rest, the muscles of the eyes are in a state of spasm for a long time, and they will cause myopia if they are not adjusted over time, and the third reason is that the eye posture is incorrect, some children read books when walking, and read books when they sit in the car, which increases the burden on the eyes. The fourth reason is that I use my phone computer for too long.

Analysis: Myopia is usually caused by genetic and environmental factors. Mild to moderate nearsightedness is polygenic, with genetic factors accounting for 60% and environmental factors accounting for 40%, and pathological nearsightedness is autosomal recessive, and there is no way to modify the gene.

The way to prevent and control the development of myopia is to improve the visual environment, watch less TV, mobile phones, computers, let the eyes rest more, increase outdoor activities, do not stay at home, and eat a balanced diet. Early detection, prevention and control of myopia is key.

Reading books and looking at mobile phones for a long time at close range, there are also genetic factors.

The main causes of myopia are as follows.

1.Excessive eye use for a long time, such as playing with mobile phones and watching TV.

2.Sleep is irregular and the eyes don't get enough rest.

3.Passed from parents to children.

In addition, if you want to prevent myopia or delay the growth of visual strength, you can give the eyes some lutein supplements to maintain the durability of vision and reduce visual damage. Lutein's advice is to buy international brands, I bought Urkeley, the English is usclinicals, Singaporean, I have been eating it for two months, and I don't rub my eyes much.

The occurrence of myopia is related to a combination of factors such as genetic factors, environmental factors, and poor eye habits.

Bad eye habits: incorrect posture of reading and writing, too close to the eyes of the book, or reading for too long, or walking or sitting in the car to read, etc.

Myopia can be divided into two types: true myopia and pseudomyopia. The cause of pseudomyopia is mainly due to long-term excessive use of the eye, which leads to excessive adjustment and spasm of the ciliary muscle, which makes the lens convex, resulting in changes in the refractive power of the whole eye, and the myopia caused by it is called pseudomyopia; True myopia is caused by long-term close-up use of the eye, which causes the eye axis to be over-elongated, resulting in changes in the refractive power of the entire eye, and the myopia caused by it is called true myopia. Pseudomyopia can be reduced or even returned to normal by resting and taking some necessary measures.

True myopia is caused by the elongation of the eye axis, so there is no rest or measures to reduce the degree of true myopia.

The causes of myopia are still not well understood, myopia is caused by a variety of factors, and in recent years there has been a lot of evidence that environmental and genetic factors are involved in the occurrence of myopia

Environmental factors: the occurrence and development of myopia is very closely related to the near use of the eye, the adolescent eyeball is in the stage of growth and development, the adjustment ability is very strong, the extensibility of the eye wall is also relatively large, reading, writing and other close distances, not only need the play of the adjustment role of the eye, but also the double eyeball should be cohesive, so that the extraocular muscles exert a certain pressure on the eyeball, over time, the anterior and posterior axis of the eyeball may become longer, resulting in the occurrence of myopia.

1. Internal factors:

1. Genetic predisposition: myopia has a certain genetic predisposition, which has been recognized, especially for high myopia. This type of myopia is diagnosed at an early age and is usually above 600 degrees.

2. Developmental factors: The cause of high myopia is the excessive development of the eyeball, which is mostly pathological myopia, and under normal circumstances, wearing myopia glasses cannot correct this kind of myopia.

2. External factors. 1. Long-term nearsightedness is the most direct cause of pseudomyopia and gradually excessive to true myopia.

2. Starting from visual fatigue, the frequency of the ciliary muscle in a spasmodic state increases, and pseudomyopia gradually occurs; If near vision persists, the extraocular muscles are in a state of high tension, and the anterior-posterior axis of the eye will slowly lengthen, and the refractive power of the eye will change fundamentally, resulting in true myopia.

There are many causes of myopia, mainly due to poor eye habits, and secondly, genetic factors. It is recommended that after the patient is diagnosed with myopia, he can wear glasses for vision correction. Usually cultivate children's good eye habits, pay attention to the combination of work and rest, and avoid excessive eye use.

After work or study, you can look into the distance or close your eyes and rest for a while to relieve eye fatigue. The common causes of myopia are genetics, prolonged eye use and wrong eye posture, as follows: myopia has genetic factors, especially high myopia, which has a certain inheritance for future generations.

The eyes have been used for too long. Some children watch text and TV for more than 3 hours and don't get a good rest for their eyes. Their muscles are in a state of spasm for a long time.

If you can't adjust it, it will cause myopia over time. In addition, the posture of the eyes is incorrect, and some children read books and ride while walking, which will increase the burden on the eyes.

1. Genetic factors, in fact, many myopia are caused by genetic reasons, if it is caused by genetic factors, the age of the disease is earlier, but for people with high myopia, there is no family history.

2. Under the influence of environmental factors, if the light is not good, the light is too dark when reading or writing, then reading in strong light will easily form myopia.

3. Bad living habits, reading books when walking, reading books in the car, always shaking back and forth, it will be easy to form myopia.

4. Lack of sleep is also a very common reason, in fact, sleep has a lot to do with one's own myopia, when the lack of sleep will lead to myopia.

Baoding Xinshi Eye Hospital.

Ophthalmologist Shi Yongli Profile: Director of the Department of Ophthalmology, working in a tertiary hospital for more than 10 years, good at cataract, glaucoma, pterygium surgery and various ocular surface diseases, dry eye syndrome, keratitis and pigmentitis, fundus disease, various complex eye diseases, systemic diseases, ocular complications and difficult diseases.