According to official statistics, the probability of eye diseases among students aged 7-12, 13-15 and 16-18 in China is 45.71%, 74.36% and 83.28%, respectively. The incidence of eye diseases in adolescents has surpassed Japan to become the world's largest country.
People generally classify the reasons as two aspects. First, the children's homework is stressful, excessive use of the eyes, the incorrect sitting posture also accelerates the damage to the eyes; the second is the long-term opposition to electronic products such as mobile phones and tablet computers. Two factors have caused eye fatigue in adolescents, resulting in decreased eye regulation, which in turn induces eye diseases.
However, is this really the only thing?
Last year, a World Health Organization (WHO) Eye Association's research report went on the go. The report pointed out that "the potential hidden threat of blue light hazard to humans will far exceed the destructiveness of Sudan red, melamine, SARS, H1N1, invisible. In the eyes of people. Although, this so-called WHO research report has been confirmed as false news. But the term blue light hazard has entered the public's sight.
So, does the "blue light hazard" have any harm to the eyes and how much damage? We are here today to restore the truth to the facts.
First, let's explore the first question. Does Blu-ray really hurt the eyes?
The following is the answer to this question in the CIE S 009/E:2012 study published by the International Commission on Illumination CIE in 2002:
Figure 1 CIE S 009/E: 2012 Appendix A.3
The effect is that blue light can cause photochemical damage to the retina, mainly concentrated in the epidermal cells of the retinal pigment, and forms arcs and blind spots on the retina.
Figure 2 Human eye structure
What do you mean? The reason why the eye can see things is because there are rods and cones on the retina. There is a place in the axial end of the retina called the fovea. This is the area with the most acute vision and the most abundant visual cells. And it appears yellow because it is rich in lutein. Under normal circumstances, the aging of the macula with age increases visual decline. However, under the long-term exposure to blue light, excessive blue light directly enters the retina and generates a large amount of free radicals, which causes accelerated oxidation of the macula. Eventually, the visual cells in the macula are largely killed, and the damage cannot be repaired by itself.
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