First look at radiation. Computer radiation is caused by electromagnetic waves. Generally speaking, electromagnetic waves have a certain amplitude and wavelength. The compound medium and the radiation protection film of the radiation protection glasses use this principle to use electromagnetic waves of different wavelengths to interfere with each other to achieve the purpose of radiation protection. But to be honest, the amount of computer radiation is actually relatively small, and there is no specific national standard, so not many people pay attention to research radiation. Anti-blue glasses block the "blue light" contained in the light irradiated by various electronic screens or other light sources and cause direct damage to the eyes. According to the latest national standards, blue light refers to high-energy shortwave light with a light wavelength between 385nm and 505nm. This light is within the visible light range of the human eye and is blue when viewed by the human eye, so it is called blue light. Blue light is divided into harmful blue light and beneficial blue light. Harmful blue light can penetrate the eyeball directly to the retina and macula, causing irreversible damage to the eye.
|
|
In addition, this lens takes into account the two focal points in the vision calculation for the first time in single vision glasses. Regardless of whether it is distance vision or near vision, the prescription is adjusted according to the distance between the target and the eyeball, so that the same lens can be provided to Consistent correction effect for the wearer. For people like me who often need to deal with computers and mobile phones, it is really suitable.
Anti-blue lenses are everywhere, adding a healthy element to the fashion trend. Under the influence of the new crown epidemic in 2020, how important health is! Mike Optics calls on everyone to protect their eyes. In 2020, be alive!