But it is important to remember that spending one hour outside on a normal overcast day exposes our eyes to 30 times more blue light than spending one hour inside sitting in front of a screen.
It makes sense that clear spectacle lenses do not require UV protection if we mainly wear them indoors. However, it is best to wear clear lenses with a blue light filter. This is because the different wavelengths of visible light are refracted in slightly different ways by the cornea and crystalline lens, so not all of them strike the same focal point on the retina. Some people will be familiar with these kind of phenomena – for example the fact that it's easier to clearly see red at a distance and blue close up, or the way in which infographics with red, green and blue lines are more tiring to keep in focus than lines which are all shaded in the same or similar colours.
So important to well protect the eyes from harmful blue rays. This is why we at FIRST EYESHOP ONLINE insists on this blue tint as complimentary to you.. We are able to do this because of online savings.