The technologies behind your sunglasses

The technologies behind your sunglasses

sun glasses
Do you know what your sunglasses’ lenses are made from? It would be easy to assume that they are glass – the clue’s right there in the name, after all! But in fact, while glass is still used in the manufacture of some sun glasses and eyeglasses, today most lenses are made from high-tech plastics which weigh less and break less easily than glass, and that can be treated with filters to protect your eyes from harmful ultraviolet (UV) rays.