How to minimize the damage caused by electronic products?
The summer vacation is coming soon, and here comes a good opportunity to control the axis. Not only does it reduce the pressure on the eyes at close range in education, but there is also a lot of time for outdoor contact or taking children to the countryside with a wide field of vision. However, there are also many children who are addicted to electronic products, but there is no way to let them go. How can we minimize the harm to our children?
Nowadays, adults are inseparable from electronic products whether they live or work. If they cannot be eliminated, then use electronic products correctly to minimize their harm. Adjustments can be made from three aspects: screen, distance, and blue light:
Distance - reduce close range
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The World Research Institute IMI2021-3 has many key points in the risk factors of myopia [using eyes at close range]. One of the most influential reasons for preventing axial growth must be paid attention to. In addition to following the 20-20-20 rule to effectively solve the problem of close eye use, previous articles have explained in detail how to change the distance from near to distance and solve the problem of eye fatigue at close range. This article will not go into details. You can click on the link to review "Fog Screen, Telescope" , reading and writing mirror" principle and replacement method!
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Screen - white text on black background
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Research and experimental results from the University of Tübingen in recent years have shown that: black words on a white background will stimulate the OFF pathway in visual signal transmission and thin the choroid, which will lead to the growth of the eye axis and cause myopia; while white words on a black background will stimulate the ON pathway and thin the choroid. Thickening, resulting in constriction of the eye axis and inhibiting the progression of myopia
Blue light energy accumulation
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Blue light is a good medicine for preventing and controlling myopia when used well, but it is a poison that aggravates the occurrence of myopia and causes dry eyes when used improperly. The blue light in natural light during outdoor activities can promote dopamine secretion and prevent and control myopia. The blue light energy generated by electronic screens continues to accumulate in the eyes, consuming a large amount of oxygen on the retina, causing lipid peroxidation damage, causing an increase in toxic oxidative stress concentration, a decrease in nitric oxide concentration, a thinning of the choroid, and a change in the axial length of the eye. Longer, myopia increases. On the other hand, when oxidative stress increases significantly, it will inhibit the decrease in serosine hydroxylase concentration and inhibit dopamine secretion, resulting in no signal reaching the sclera, causing the sclera to develop again and the eye axis to become longer.
