Causes of congenital myopia, what is congenital myopia What are the characteristics of congenital my

The causes of congenital myopia can be summarized in the following two points:

Clause. 1. People with myopia in their parents or families, generally with myopia above 400 degrees, the hereditary probability of the mother is about 70%, and the hereditary probability of the father is 50%;

Clause. 2. During the period of maternal development, the fetus lacks visual nutrition in the mother's body, resulting in poor congenital vision development of the fetus.

Generally, whether it is inherited from parents or during pregnancy, as long as myopia is found, it should be timely**, which can control vision well and reduce the degree of myopia, otherwise myopia will increase with age.

Doctors generally recommend taking two packets of Vision Nutrients a day, and insist on taking them for a period of time, myopia can be controlled, and the good vision absorbed can be improved.

In addition, we must develop good eye habits

1. Reading books, when children are reading and writing, do not lie on the table and tilt their heads to study, let alone lie down or sit in the car to read, and the posture of reading and writing must be correct.

2. When writing and reading, keep the distance between the body and about 30 cm.

3. Don't use your eyes for a long time, especially when using the computer, watching TV, watching and writing, it is best not to exceed 40 minutes in a continuous time, and you should rest for about 10 minutes after using your eyes, do eye exercises, look at the green scenery in the distance, or close your eyes and take a break.

4. The indoor light should be sufficient and soft. If you can't study in strong sunlight, you can choose a non-flickering lamp, such as an incandescent lamp.

5. Eat a balanced diet, don't be picky, eat more foods that are good for your eyes, such as carrots, tomatoes, corn, spinach and other red foods, which have a protective effect on your eyes.

In the past, it was thought that myopia was caused by genetics and eye diseases. But recently scientists have discovered that a lack of adequate outdoor activity and light exposure can also lead to myopia. During outdoor activities, proper light can help the retina of the eye release dopamine, which elongates the eye axis and helps the normal development of the eye.

01 Congenital myopia.

Congenital myopia is also called hereditary myopia, and this kind of myopia is high myopia, in infancy more than 10 diopters of myopia is called congenital myopia, at present, there are still many people with congenital myopia in China.

02 The degree of myopia is growing very fast.

People with congenital myopia, myopia growth is very fast, often in the short term quickly become high myopia, the degree can reach more than 600 degrees, if not timely correction of the pure, it is difficult to control the margin in the later stage. This feature is very obvious.

03 The height hall destroys myopia.

People with congenital myopia, if they do not control myopia in the early stage, will have high myopia in the later stage, generally reaching 600-1000 degrees, and it is difficult to see clearly without glasses. This feature is very obvious.

04 The eyeballs become longer.

People with congenital myopia, with the increase of age, often have longer eyeballs and are very ugly, which is also very obvious.

Myopia that exceeds -10 diopters in infancy is called congenital myopia. Congenital myopia is also called hereditary myopia, and most of this myopia is high myopia. This type of myopia usually does not develop and is distinguished from pathological myopia.

After detection, it should be corrected in time to avoid the occurrence of amblyopia.

There are two types of hereditary myopia: simple myopia (low to moderate myopia) and high myopia (degenerative myopia). Hereditary myopia is related to the quality of the parents' vision and the influence of acquired environmental factors. If both parents are nearsighted, their children are more likely to develop myopia; Otherwise, it is smaller.

Simple myopia is a polygenic genetic disease, which is generally low in power and has no obvious fundus changes, which is easy to correct. However, high myopia is a chromosomal recessive inheritance, with a high degree of myopia and obvious changes in the fundus, and it is generally difficult to correct vision. Hereditary myopia is a natural misfortune and regret.

There are two types of hereditary myopia: simple myopia (low to moderate myopia) and high myopia (degenerative myopia). Hereditary myopia is related to the quality of the parents' vision and the influence of acquired environmental factors. If both parents are nearsighted, their children are more likely to develop myopia; Otherwise, it is smaller.

Simple myopia is a polygenic genetic disease, which is generally low in power and has no obvious fundus changes, which is easy to correct.

Dangers of congenital myopia.

1. Lifelong development.

Before the age of 7, children's myopia is usually lifelong development, the younger the age, the higher the degree of myopia in the future, if the congenital myopia is not well controlled, more than 95% of adults will develop into high myopia of about 600-1000 degrees.

2. Blindness.

The higher the degree of myopia in children, the greater the chance of fundus hemorrhage and retinal detachment leading to blindness. When a child's myopia progresses to high myopia, about a quarter will be complicated by fundus macular disease or retinal detachment, resulting in low vision and severe blindness.

3. Refractory.

Myopia in children is difficult to control with traditional methods because:

1. Children's growth and development are in the vigorous period, and the eyeballs are easy to become longer.

2. Due to the poor compliance of the eyeball, there are many opportunities to use the eye at close range, and the duration is difficult to control.

Fourth, it can cause recurrent amblyopia.

More than 90% of children with high myopia have amblyopia, and recurrent amblyopia will cause visual deprivation due to the bottom of vision, which can in turn aggravate myopia.

For high myopia, it is thought to be caused by autosomal recessive inheritance. That is, if both parents are high myopia (note: this refers to high myopia), the incidence of high myopia in their children is 100%, and if one parent is highly myopic and the other is a gene carrier (no myopia), the expected incidence of high myopia in children is 50%; If neither partner has high myopia but is only a gene carrier, the incidence of high myopia in the child is 25%.

What is the difference between congenital myopia and pathological myopia? Let's talk about this topic with you.

01 First of all, I would like to tell you that congenital myopia is born with it, and pathological myopia is acquired by patients.

02 In addition, because congenital myopia is inherited from parents, there is no possibility of prevention, and pathological myopia can be prevented.

03 Congenital myopia is generally much more serious than pathological myopia, and there is generally hereditary myopia, and the myopia of parents is very high

04 In addition, pathological myopia can be recovered later, while congenital recovery is very unlikely.

The so-called congenital myopia, as the name suggests, is a condition of myopia inherited from parents to their children; Generally speaking, parents with high myopia will basically (more than 90%) inherit it to their children, and they are born with true myopia; Because it is not the visual acuity that is inherited, but the axial length; Congenital myopia is currently difficult to completely correct, and wearing glasses is the only option if it is not controlled in time, and the prescription will become deeper and deeper; Because the child itself is developing, the eye axis is already growing and growing even more;

Acquired myopia is generally caused by visual fatigue caused by incorrect eye habits; It is functional myopia, which can be recovered by **; It is worth mentioning that if acquired in the early stage of the modern world is not corrected in time**, with the further decline of vision, the eye axis will slowly become longer, and eventually become true myopia that is extremely difficult to recover;

Therefore, myopia is still based on prevention at present; Myopia should be detected as early as possible**; It's best not to rush to get glasses; The more you wear the glasses, the deeper the prescription will be;

Expert: Myopia is divided into congenital and acquired, and has the characteristics of not being able to completely.