What is the primary purpose of anti-reflective coatings on lenses?

The primary purpose of anti-reflective coatings on lenses is to reduce glare. These coatings work by minimizing reflections on the surface of the lenses, which can enhance visual clarity and comfort for the wearer. When reflections are reduced, more light passes through the lens instead of bouncing off, providing clearer vision and reducing distractions from glare that can occur in bright environments, such as driving at night or working on a computer. This improved light transmission can also make the lenses appear more transparent, making the eyes more visible for cosmetic reasons.

While other coatings or treatments exist for purposes like enhancing UV protection, modifying the color of lenses, or increasing lens thickness, these functions are distinct and not directly related to the primary role of anti-reflective coatings.