The correct way to use anti-blue light glasses is to use them in the daytime only when we use computers, mobile phones and other electronic products. Filter the blue light with relatively high energy from the electronic screen with a wavelength between 430-480 nm, but it can not be filtered 100%.

The best anti-blue light glasses are to reduce the peak blue light in the light by 65%, and restore the height of the light emitted by the screen to natural light, Eliminate the damage to the eyes caused by the accumulation of blue light energy, but after the non-imaging visual cell ipRGC senses part of the blue light stimulation, it will directly transmit this signal to the pineal gland of the pituitary gland through the visual nerve, and then inhibit the secretion of melatonin from the pineal gland. This can make people stay awake during the day, have more spirit to deal with the things of the day, and make our life more regular.

When it gets dark at night, because we need LED lighting, blue light is everywhere in the environment, and now families like to watch LCD TV at night to kill time, which requires us to wear anti-blue light glasses before going to bed, because blue light is not needed to inhibit the secretion of melatonin at this time, and the body does not need to be in an excited state. At this time, the beneficial blue light in the daytime has turned into harmful blue light, on the contrary, We need melatonin secretion to reach a certain concentration, which will help us fall asleep, ensure good sleep quality, further prevent myopia, and prevent the increase of myopia, so as to achieve the effect of eye protection.