Recently, floor standing eye protection lights have been highly sought after by many parents due to their shape resembling street lamps, also known as "big street lamps". At present, the price of large street lights ranges from a few hundred yuan to nearly ten thousand yuan, and some road lights claim to protect the eyes and prevent myopia. So, do street lights really have this effect? It is understood that street lights generally have the following characteristics: they are large in size, usually around 2 meters in height, and weigh around 20 kilograms; Wide lighting range, the light can cover the desk and surrounding ground; The price is much higher than ordinary desk lamps, generally over a thousand yuan, and some can even reach eight or nine thousand yuan. The merchant claims that such products are beneficial for children's eyes and can prevent myopia. Ms. Lin from Guangzhou, Guangdong Province told reporters, "The promotional advertisement for the street lamp makes people feel that it is very high-end. Children have to read and study for several hours every night at home. It is worth spending more money for their eyesight. So, what kind of lamp is the street lamp? Huang Jun, director of the Lighting Room at Zhongshan Quality and Metrology Supervision and Testing Institute in Guangdong Province, said that the road light is actually a movable universal lighting fixture, which belongs to the category of mandatory CCC certification products in China. Unlike traditional desk lamps, the street lamp adopts a dual light source design with upper and lower light sources. ”Dr. Xu Jiping, attending physician of the Department of Refractive and Adolescent Myopia Prevention and Control at Sun Yat sen University Sun Yat sen Eye Center, said that the street lamp has a light source that directly illuminates the desk, while also illuminating the ceiling, which is equivalent to combining a desk lamp and a ceiling lamp into one lamp, making the indoor reading environment overall brighter. Can road lights prevent myopia? Xu Jiping believes that there is currently no direct clinical evidence to prove that street lights have a significant effect on myopia prevention and control, and indoor lighting is only a small part of myopia prevention and control work. According to the "Guidelines for Prevention and Treatment of Myopia (2024 Edition)", the influencing factors of myopia include genetic factors and environmental factors, with the latter covering close eye use, outdoor activities, reading and writing habits, lighting, etc. In addition, some street light vendors also claim that their products can "improve retinal blood circulation" and achieve the effect of "inhibiting rapid axial growth and controlling myopia". Experts say that lighting fixtures do not belong to medical devices, and the promotion of products with medical effects is unreliable. The so-called "therapeutic effect" is difficult to verify. As for the association between light and myopia, a randomized controlled study conducted on 1840 students currently shows that students who study in a classroom lighting environment that simulates the solar spectrum have a lower incidence of myopia after 3 years. This indicates that lighting fixtures that simulate the spectrum of sunlight can be helpful in preventing and controlling myopia. Xu Jiping believes that although some manufacturers' street lights simulate the spectral characteristics of outdoor light, the actual effects vary, and other eye protection desk lamps and ceiling lights can also achieve similar effects. The interviewed experts pointed out that there are several key considerations when purchasing street lamps or ordinary reading and writing desk lamps. Huang Minde, Director of Quality and After sales at Leishi Lighting, said that parents must pay attention to whether the product is clearly labeled and in accordance with the national standard GB/T 9473-2022 "Performance Requirements for Reading and Writing Homework Desk Lamps". In terms of performance parameters of lamps, special attention should be paid to the spectral characteristics of lamps, and lamps with spectral characteristics close to sunlight should be selected as much as possible. The lighting fixtures purchased for children should have a desktop illumination of 500 lux or above and a color rendering index of 95 or above. In addition, the product also needs to meet requirements such as anti glare and low blue light, creating a comfortable and healthy reading and writing lighting environment for children in all aspects. ”Huang Minde said. (New Society)