Since the epidemic entered the second level of alert, the demand for home work and online teaching has increased rapidly. With the exponential growth of eye use, vision care has become a must-have for everyone. Among them, the most worrying is that the number of myopic children is increasing, and the speed of degree deepening is getting faster.
The main reason why the severe problem of myopia in children has been reminded is: the younger the age at which myopia begins, the faster the degree increases, and the degree of myopia will increase at an average rate of 100 degrees per year, and if it is not prevented and corrected early, it is easy to develop into "high myopia".
Myopia in children has become a social problem, eliminating the cause of poor vision
According to statistics, 7 out of every 10 school-age children under the sixth grade of primary school have myopia; If extended to the whole country, it worsens to nearly 9 per 10 people for myopia, and there is a frightening trend of one year earlier every 5 years.
Statistics show that the rate of poor naked eye vision among students from primary to high school is 62.9%. Compared with Japan, the rate of naked eye defects in children was 26%, compared with 19.5% in Japan; The naked-eye defective rate of high school seniors was 81.9% in Taiwan and 66.3% in Japan, and the data difference ratio was 2.4 times.
There are three high crises of myopia, namely the high incidence of young age, the high prevalence rate in the country, and the high proportion of high myopia, and its danger cannot be underestimated.
Causes of vision loss:
- Illness or trauma
- aging
- Eye strain
- Excessive use of eyes
- Poor indoor light source
Myopia is caused by the lengthening of the eye axis, so that the image cannot be correctly projected on the retina, making the vision become blurred. As the eye axis lengthens and the eyeball is deformed, the weight and volume will be heavier than the normal eyeball, like an inflated balloon squeezed into the eye socket, bringing more pressure to the eye.
There are many treatments for myopia correction, don't be afraid of treatment
Myopia correction treatment, in addition to point "mydriasis" (ciliary muscle relaxant) to slow down the progression of myopia, "wearing glasses" is currently the most common way to correct myopia, but parents generally do not like to let their children wear glasses, always think that wearing glasses, can not take off for a lifetime.
Wearing glasses is a relatively safe way to correct myopia for most people. But the disadvantage is that it is inconvenient to exercise, especially for active children and adolescents, parents will worry that the lenses will break, may scratch the eyes, etc.
However, if the child's power increase cannot be effectively controlled, it is still recommended to wear glasses to correct it, and clear vision will help the child's eyes develop normally. Wu Yijie reminded that wearing glasses needs to go to a medical institution, obtain prescription, interpupillary distance and other parameters through regular refraction, and then dispense glasses.
Lens selection college ask, wear the right to prevent deterioration
Because children's myopia correction lenses are learned! Generally, monofocal lenses do not have the effect of myopia treatment, especially children and adolescents who are not stable before the age of 18 and whose myopia degree is not stable, will wear the prescription deeper.
Because the shape of the retina is not flat, when corrected with general myopia lenses, the central focus falls on the retina, but the peripheral focus is offset to the back of the retina. Children's eyes will regulate autonomously, and the eyes will chase the focus located behind the retina, causing the eye axis to be excessively elongated, resulting in an increase in myopia.
To prevent myopia from deepening, it is recommended to wear spectacle lenses with therapeutic properties, designed for progressive multifocal, peripheral defocus, peripheral defocus compound asymptotic polyfocal, etc. For daytime contact lenses, in addition to the choice of hard and soft, single-focus, multi-focus, bifocal and other designs are also the key to correction.
Medical evidence has proved that orthokeratology tablets are effective
Wearing it during sleep and taking it off when you get up without wearing any glasses, orthokeratology film that can correct vision and clear vision has a medical empirical effect in the treatment of myopia and is the best choice for many children and parents who love outdoor sports.
As long as you sleep more than 7 hours a day, clear vision after removing the lens the next day can be maintained throughout the day. "However, if the prescription is deeper, it is recommended that the wearing hours should be increased, or in the evening, change to general glasses to correct vision."
Orthokeratology tablets are not only suitable for children, he emphasized that most of the users are worn from childhood and adolescence to adulthood, even if they are over 18 years old, they can rely on orthokeratology tablets to get rid of the shackles of glasses, which is a new trend in the treatment of myopia.
Many parents wonder, at what age can I start wearing orthokeratology films? Wu Yijie said: Because orthokeratology films will directly contact the eyeball, at present, the regulation stipulates that the age of indication is 9 years old. However, 6 to 8 years old is the golden period for myopia correction in children, if parents have needs, you may wish to ask a professional ophthalmologist.
To prevent myopia, it is urgent to protect children's vision
The best way to prevent myopia in children, avoid long-term eye use and exercise more outdoors, to ensure that the eyes can have enough rest time, take balanced nutrition and pay attention to the choice of indoor light source, is an important principle to prevent vision loss.
It is necessary to develop the habit of receiving regular vision examinations, and if there is ambiguous vision, you should immediately consult a professional ophthalmologist, the way of vision correction is becoming more and more diverse, and you should consult a doctor to choose the most suitable way to always maintain eye health.