As the name implies, an Anti-reflective coating serves to block reflection from sources of natural, outdoor light (sunlight) or artificial light (headlights, TV, computer screens).
When driving, for example, headlight glare is a major issue that can cause unwanted reflection on the inner side of the lens, which can interfere with our vision by way of a phenomenon known as “ghosting”.
This unwanted glare can be eliminated by applying an anti-reflective coating, which eliminates reflection on the surface of the lens and allows much more light to pass through the lens.
In this way, we see more clearly and the lens is more transparent, which also makes it more aesthetically pleasing.
An anti-reflective coating can be applied to both the outer surface and the inner surface (the one closest to the eye) of the lens.