The incidence rate of myopia has increased year by year, and has become a global problem. In the west, although most parents encourage children to take part in outdoor activities, the primary school stage is not too heavy. But the incidence rate of myopia is still increasing over the previous ten years.
Generally speaking, juvenile myopia starts from the age of 6-8 and increases to 15-16 with an average annual rate of 0.5d. The earlier the onset, the faster the deepening.
Clinically, “close eye” is defined as a distance range of 33cm from the eye, which is about the distance of half an adult arm. The common forms are homework, computer use, mobile phone, piano playing, painting and reading.
Studies have shown that adolescents who spend more than two hours a week at close range will have a 2% increased risk of myopia. On the contrary, if you increase the outdoor activities by 2 hours every week, you will reduce the risk of myopia by 2%.
If a child attends a 4-hour after-school close-up class every week (Monday to Friday), his risk of myopia will increase to 120%.
For long-term and short-range use of eyes, especially for young children, their adjustment ability will fluctuate during this period, and even gradually weaken with the passage of time. In this way, the image will be formed at the back of the retina due to insufficient regulation ability, which is called the effect of farsighted defocusing clinically.
Long term hyperopia and defocusing will produce signal factors to soft tissues such as retina and sclera, so that the eyeball can adapt to this state. As time goes on, the axis of the eye gradually increases, forming axial myopia. The younger the age is, the more signal factors are produced, the stronger the response of the eyeball to the signal, and the easier the eye axis is to grow.
Learning a musical instrument or drawing from childhood is very helpful for the development of children’s hand eye coordination (especially the fine movement of fingers), abstract thinking of brain and visual integration.
However, a large number of clinical studies show that the incidence rate of myopia in piano children is higher than that of ordinary children, especially those who are less than 7 years old.
At the most rapid growth stage (between 10-15 years old), many children also have the pressure of piano test and painting competition. They often need to practice for 1-2 hours every day, which also increases the chance of myopia.
The influence of myopia on children is mainly reflected in five aspects
Drag on learning – let him put in 30% more effort
The phenomena of blurred vision, dry and sore eyes, difficulty in concentration, emotional agitation and even dizziness caused by myopia will make children pay 30% more time and mental labor than those with normal vision, and spend more time in learning.
Heredity – the age becomes the slave of the eyes
Both parents are patients with high myopia. The incidence of high myopia in their children is 78%. If one of the parents is high myopia and the other is gene carrier (no myopia performance), the expected incidence of high myopia is 58%; if both parents have no high myopia performance but only gene carrier, the incidence of high myopia is 49%
Degree deepening – causes complications
When myopia further develops into high myopia, it is easy to cause many complications, such as retinal detachment, choroid, vitreous diseases, and even blindness.
Affect children’s character mental sub-health
Short sighted children lack self-confidence, poor adaptability to the environment, lack of self-determination, poor self-care ability, over dependence on their parents, lack of independence, are also prone to anxiety, psychological sub-health.
Affect children’s beauty – myopia can cause eye mutation
Middle and high myopia will lead to exophthalmos, eyelid relaxation, and affect appearance. And the children who wear glasses for a long time will have such a feeling. The glasses are getting smaller and smaller, the nose is getting more and more collapsed, and in a word, they are getting uglier and uglier.