1.56 1.61 1.67 Anti-Blue Light Optical Lens MR-8 Aspheric Myopia Prescription Lenses Eyes Protection Reading Computer Eyewears

Why do anti-blue light lenses have a slight yellowish color?

Anti-blue light lenses are actually the same as ordinary lenses, colorless and transparent. The reason why we see them as yellow is because visible light is composed of three types of light: yellow, green and blue. Anti-blue light lenses block blue light, leaving only yellow-green light. Yellow plus green is yellow, so we see the lenses as light yellow. If you look at the side of the lens, you will find that the lens is also transparent and has no background color.