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Ningxia Daily Social News Department:
In order to protect my child's eyesight, I recently bought an eye-protection lamp for my daughter, but my daughter used to scream and hurt her eyes. I want to ask, is the eye protection lamp in the market really eye-protecting?
Along with the high incidence of myopia, the eye-protection lamp quickly became popular in the market, and the concept card without stroboscopic light was claimed, claiming to protect vision and prevent myopia. With the question of Ms. Yu, the reporter recently conducted an investigation into the Yinchuan City eye-protection lamp market.
In some large shopping malls in Yinchuan City, the reporter saw that the eye-protection lamps occupied more than half of the lighting sales market, and there were many brands, and the price gap was large. Most of them cost hundreds of yuan each, and only a few specials fell to more than 80 yuan. The reporter went to the Oriental Mall and Wenzhou Mall and found that the eye protection lamp here is very cheap. The lowest price is only 20 yuan.
Why can the eye protection lamp protect the eye? The salesperson of a shopping mall told the reporter: "The brightness of the eye protection lamp is stable and there is no stroboscopic light, which can protect vision and prevent myopia." As for why the price is very different, the salesperson said: "The higher the price The better the quality, the longer it takes." The reporter carefully observed that in the functional description, almost all eye-protection lamps are marked with eye-catching "no stroboscopic" and "preventing myopia" on the product manual and outer packaging. The words. The instructions for an eye-protection lamp say, "The stroboscopic lighting is easy to cause eye fatigue, causing myopia in the eyes." There is also a name that uses high-tech DC technology, which does not strobe and protects. Eyes, prevention of myopia. However, the reporter rarely saw relevant test reports in the product packaging and instructions of these eye protection lamps.
The reporter immediately consulted reports from some departments, such as the state and the autonomous region, that stroboscopic light refers to the change of fluorescent light under the action of alternating current, which is a discontinuity of light. A strobe that reaches once or twice per second can be uncomfortable. Some eye-protection lamps use variable-frequency electronic rectifiers to speed up the blinking speed and exceed the nerve reaction speed of the human eye. It is more comfortable to learn the eyes under this kind of light. However, reading books under the eye-protection lamp for a long time will also cause fatigue. An ophthalmologist at the First People's Hospital of Yinchuan City also said that the factors leading to myopia are complicated, such as eye posture, health habits, genetics, nutritional factors, etc., in which excessive use of eyes is more likely to have myopia, and there is also no physical exercise. influences. In this sense, there is no direct relationship between what kind of light to use to read books. The doctor also pointed out that correct eye habits and good diet are the key to ensuring eye health. If you use students with frequent eyes and those who work on computers, you should eat more coarse grains and more zinc supplements. If you work, surf the Internet or study for more than an hour, you should stop and rest for about 10 minutes.
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Is the eye protection lamp really eye protection?
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