The problem of children's myopia has always been a problem that parents attach great importance to. Myopia not only affects vision, resulting in many inconveniences in life and work, but also basically cannot be recovered once it is obtained, which brings a lot of trouble to the child's life. Especially parents who have myopia themselves, have brought glasses for more than ten or twenty years, have a deep understanding of the pain of myopia, and are more reluctant to let their children suffer from myopia.
In recent years, the prevalence of myopia in children in China has also become higher and higher. According to the data released by the "China Eye Health White Paper", the overall myopia rate of children and adolescents in China reached 53.6% in 2018. Among them, the myopia rate of 6-year-old children is 14.5%, the myopia rate of primary school students is 36.0%, the myopia rate of junior high school students is 71.6%, and the myopia rate of high school students is as high as 81.0%.
Therefore, parents for their children's myopia, can be described as a broken heart, do not let watch TV, do not allow mobile phones, and do not eat sweets, because eating sugar will lead to myopia.
In particular, eating sugar will cause myopia, even many pediatricians will say this, is it true?
First of all, this theory is that too much sugar intake will lead to calcium loss, which makes the toughness of the eye wall worse, the eye axis becomes longer, and the occurrence of myopia is encouraged.
In addition, excessive sugar intake can also lead to increased blood sugar, causing lens deformation and increased diopter, which can cause or worsen myopia.
These claims all sound professional and seem to make a lot of sense.
However, after a closer look, we found that although this possibility exists, there is no conclusive evidence that excessive sugar intake can cause myopia.
In fact, there has been no exact statement about the causes of myopia, and it is currently more certain that there are genetic factors, in addition, other claims are only theoretical speculations, and there is no evidence to support it, and it cannot be fully believed.
Take eating sugar can lead to myopia, eating sugar can lead to calcium loss, this is evidence, but whether the calcium loss caused by eating sugar can reach the degree of poorer toughness of the eyeball wall and the lengthening of the eye axis, there is no evidence to prove.
In addition, excessive sugar intake leads to increased blood sugar, which is inherently loose. For normal people, the body can automatically adjust the intake of sugar, to ensure that the blood sugar concentration is within the normal range, so it will not cause blood sugar to increase.
Of course, the effect of blood sugar on vision is still there, but this is mainly manifested in diabetics. If the blood sugar of diabetics is out of control, it will cause changes in the diopter of the eye lenses, causing myopia or hyperopia. But the effect is temporary, and when blood sugar returns to normal levels and stabilizes, the eyes also return to normal.
In fact, there is very little really strong evidence in the study of the relationship between sugar consumption and myopia. A 2010 study found that too many saturated fatty acids in the diet were associated with myopia. Another French study found that girls eat more sugar and are more myopic, while boys eat more sugar and less myopia.
But in fact the study itself is also problematic, there are many deviations, and the results are not reliable. Moreover, all studies have only proposed a correlation between myopia and eating sugar, not causality, so there is no way to conclude that "eating sugar causes myopia".
Over the years, parents' struggle with myopia has not stopped. So how exactly can children prevent myopia?
First of all, cultivate good reading and writing habits, and follow the "three ones" principle: fingertips are one inch away from the tip of the pen, chest is a punch away from the table, and books are one foot away from the eyes. In addition, do not read when lying down or walking, and ensure adequate lighting when reading and writing.
Secondly, electronic products are very irritating to the eyes, and as teenagers use electronic products for more time, the impact on the eyes is also increasingly serious. Parents should control the time for children to use electronic products, it is best not to exceed 1 hour a day, and pay attention to the relaxation of the eyes in the middle of use.
Third, to carry out appropriate outdoor activities, outdoor activities are conducive to enhancing the child's physique, while reducing eye fatigue, to achieve the effect of protecting the eyes.
Finally, parents are reminded that once their children are short-sighted, they should wear glasses above 100 degrees. If parents do not wear glasses for their children in time, it may cause the degree of myopia of children to develop faster.