Take the child (5 years old) to check the vision on the weekend, vision 1.0, I secretly rejoiced in my heart: "There is no myopia and no farsightedness, the child's vision is maintained well."
Unexpectedly, the doctor said in a serious tone: "Pay more attention to the fact that children may be myopic after a year..."
yes? Why is that???
"Doctor, aren't you cursing my child?"
Not really!
This is judged by the disappearance of the "farsighted reserve" of the child's eyes.
What is the relationship between hyperopia and myopia?
In general, newborns have weaker vision, a shorter eye axis, and hyperopia in both eyes (except for people with congenital myopia).
When children reach the age of 4 to 5, their eyes will be accompanied by physiological farsightedness of 200 to 250 degrees. This more than 200 degrees of farsightedness can be used as a "reserve food" for "loss" and "protection" of children from myopia.
With the growth and development, the anteroposterior diameter of the eyeball is correspondingly extended, that is, the eye axis continues to grow, and the vision gradually becomes normal.
At this time, this physiological farsightedness basically disappears, and this process is called the "process of facing up".
But now with the popularity of electronic products coupled with the usual bad eye habits, such as many children in the kindergarten stage began to take online classes, resulting in the advance of the speed of eyeball "face-up".
If a 5-year-old child has reached 1.0 vision, indicating that his "face-up" is advanced, what will happen after a year? Depleting the "cost" of hyperopia early and continuing to overdraft will become myopia.
0 to 6 years old is the "myopia incubation period" for children
Many parents believe that the prevention of myopia is a matter of their children's school days. In fact, 0 to 6 years old is a child's "myopia incubation period".
For children before the age of 6, the reserve of farsightedness is very important, determining the probability of myopia in the child.0
Therefore, at the beginning of kindergarten, it is necessary to protect the eyes and guard the precious "farsighted reserve", so as to:
Not myopic in elementary school
Kindergarten is a critical period for the prevention of myopia, and this stage should focus on protecting the "farsighted reserve" and striving for greater space for the prevention of myopia in the primary school stage.
At the same time, developing good eye behavior habits from early childhood will also benefit you for life.
Myopia in junior high school
Primary school students have good conditions to protect their vision, in the primary school stage to strive not to have myopia, this threshold has passed, to the middle school stage, the plasticity of the eyeball will become smaller, the risk of myopia will also become smaller.
Low myopia in the high and middle school stages
If myopia occurs in the middle school stage, a suitable correction plan should be used to control the deepening of myopia and prevent it from becoming highly myopic.
Isn't it better for children to have higher farsightedness?
If the child's farsightedness is much higher than average, such as a 6-year-old child with 500-degree farsightedness, this is definitely not normal.
At this time, it is necessary to go to the eye hospital as early as possible for examination, otherwise because the degree of hyperopia is too high, the child has been in a state of unclear view of the near and far, which may affect his visual development, resulting in amblyopia.
If the hyperopia is too high, it is necessary to dispense the glasses early, and the reserve of hyperopia is low, and it is necessary to intervene as early as possible to avoid premature myopia.
Therefore, it is recommended that parents best establish a vision file for their children, and generally children can better cooperate with vision examinations from the age of 3, and from this time onwards, check and record their children's vision status every year in order to timely grasp whether the child's vision status is normal.
Under what circumstances does it take to check the farsighted reserve?
Do I need mydriasis?
True farsightedness needs to be accurately detected after dilated pupils. When do I need to do mydriasis on purpose?
If the eye-to-eye diopter of the examination is not abnormal within the normal range, there is no need for mydriasis for the exact degree of farsightedness.
If the initial refraction screens out that the child's myopia is more than 50 degrees, combined with the eye axis judgment, it is expected that the child may be really myopic, then it is recommended to dilated refraction, mainly to determine whether it is true myopia or false myopia.
In addition, the preliminary computer refraction degree exceeds 300 degrees of farsightedness, and further mydriatic refraction is recommended to determine the true degree of hyperopia and avoid the occurrence of amblyopia.
Protect your child's farsighted reserves and do it!
How to protect your child's farsighted reserves
Give your child good eyesight?
There is a trick, simple and practical!
Tips
If you want to see well, go outside and soak up the sun
Outdoor activities such as playing tennis, flying kites, cycling, and mountaineering can not only be more exposed to sunlight and promote the secretion of dopamine, but also block the growth of the eye axis and reduce the risk of rapid development of the eye axis.
In addition, ultraviolet rays can increase the synthesis of vitamin D in the body, harden the sclera, and also help slow down the growth of the eye axis.
True myopia is irreversible
Myopia can only be "corrected", not "cured"!
In addition to developing good eye habits
Eat a reasonable and balanced diet and ensure adequate outdoor activities
Be sure to do regular vision monitoring
And optometry comprehensive physical examination!
Parents should pay attention to their children's vision problems
Early detection, early prevention and control!