Most eyeglass lenses have an anti reflective coating on the outer layer, which can be seen when you flip the lenses in the light and generally reflects green or blue light. Its main function is to increase light transmission but reflect glare and improve vision.
What does anti reflective coating do?
Anti-reflection coating, also called AR coating or anti-glare coating. The main function is to increase light transmission and reduce glare, thus improving the visual effect.
Why is my anti-reflective coating turning yellow?
Most of the eyeglass lenses on the market today have anti reflective coating as well as anti-UV coating. The material in the anti UV film layer will turn yellow under UV light from the sun for a long time.