Data show that myopic population reached 400 million in China, the highest in the world, and grow by 8% a year. Among them, the teenagers are near-sighted hard-hit, than the world average level 1. 5 times.
so how to prevent myopia? An overlooked factor the choice of the lighting is very important, especially the table lamp.
expert introduction, for the the lamp that shield an eye on the market of choice depends on the specific material, illuminance value is 500 lx is suitable for reading; In addition, the desk lamp of stroboscopic is also very important. The obvious halo, stroboscopic is high. General energy-saving lamps stroboscopic about 482 Hz, the LED lamp is 0 Hz, stroboscopic is smaller, the better for your eyes.
Cedar
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