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What data should children focus on before and after myopia? How to prevent and control scientifically?

Posting time:2022-12-03 08:07:56

What data should children focus on before and after myopia? How to prevent and control scientifically?

The data that children should pay attention to when they are not nearsighted. From birth to adulthood, the axial length of the child's eye continues to grow, and it gradually stabilizes at 23mm-24mm after adulthood. Too long or too short axial development can cause light to not focus properly on the retina, resulting in nearsightedness or farsightedness. The normal values ​​of eye development of children of different ages are different, and the corresponding results can be referred to the following table: Hyperopia Reserve Every child is born with hyperopia reserve, and hyperopia reserve is like a bank in children's eyes. Using eyes is like consumption, consuming the savings of eyes . Excessive consumption of hyperopia savings will lead to premature development of myopia in children. Children of different ages have different values ​​of hyperopia reserves, and the corresponding results are as follows: The data that children should pay attention to after myopia. Children with myopia need to pay more attention to the growth of the eye axis. For every 1mm increase in the eye axis, the degree of myopia increases by about 200~300 degrees. If the child's myopia increases by more than 75 degrees within 1 year, it belongs to "progressive myopia", indicating that the child's myopia has developed rapidly, and parents are advised to intervene in time. The corneal curvature range of normal corneal curvature is 40D-46D. The greater the corneal curvature, the more convex the shape of the cornea. Children with a convex corneal shape are more prone to myopia. Under normal circumstances, the shape of the cornea is basically fixed at the age of 3 years, and most juvenile myopia is axial myopia caused by the growth of the eye axis. Scientifically prevent myopia and reduce the harm of electronic products. The biggest harm to the eyes of electronic equipment is the viewing distance. Generally, the distance when using electronic products is 3-5 times the diagonal of the product screen. Taking the iPad as an example, its diagonal is about 25cm, so the viewing distance is at least 75cm, which is almost the same as the arm length of an adult. Note that after using your eyes at close range for nearly 20 minutes, you must look up at a distance 6 meters away for at least 20 seconds, which is what we often call the "20-20-20" formula. Reduce eye use time at close range, avoid eye fatigue and myopia deepening. Increasing the natural light of outdoor sports is the light emitted by the sun. Its own ultraviolet rays can strengthen the eye fibers, and can also promote the human body to secrete dopamine, delay the growth of the eye axis, and achieve the effect of preventing myopia. To achieve the effect of preventing myopia, you must maintain outdoor activities for 2 hours a day, or a total of 10 hours a week, so that natural light can play a role in preventing myopia! Children need to check their eyesight regularly starting from the age of 3, the child's cognitive ability begins to improve, double vision has been formed, and the functions of the eyes have also begun to improve. You should take your child to have a vision check and establish a file of children and adolescents' refractive development. 12 Refractive Development File Examinations Doing a vision examination is not only to look at the visual inspection table, but also to check the child's visual function on the basis of the visual acuity and refraction examination, to understand the child's eye position, adjustment, collection function, fusion during this period. Ability and stereopsis, etc., the doctor will also judge the specific needs of the examination according to the child's situation. If the child's best corrected visual acuity does not reach the minimum age standard, amblyopia should be considered after excluding organic diseases. The cause of amblyopia is that various factors cause the child's eyes to be unable to image clearly, resulting in functional dysplasia. Early detection and correction can prevent the occurrence and development of amblyopia. This is an important reason to check children's vision early and regularly, so as to detect vision problems such as high hyperopia, myopia, astigmatism, amblyopia, infant eye disease and other vision problems as soon as possible, and treat them in time. How to See if Your Child's Vision Is Abnormal No matter how old your child is, if you notice any of the following signs or symptoms, you need to go to a professional clinic as soon as possible:
  • Misaligned eyes ( look crossed, facing outwards or not centered)
  • white or off-white pupils
    < li data-track="68">The eye flutters quickly from side to side or up and down
  • The child always complains of eye pain, itching or Discomfort
  • Eye redness that does not go away within a few days
  • Pus or crusty eyes in both eyes
  • Eyes are always watery
    < li data-track="74">Ptosis
Vision examination, like child care and oral examination, aims to detect and correct children's problems early. In addition to regular visual inspections, it is more important to cultivate children's good eye habits from an early age, such as reducing long-term close eye use, outdoor activities for 2 hours a day, adhering to the "20-20-20" eye protection rule, dietary nutrition Balanced and supplemented with lutein, etc., to protect children's vision health.

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