Why Michigan Residents Choose Polycarbonate Glasses Nowadays, choosing a pair of eyeglasses is about more than just style. You also need to consider the material your lenses are made from. Lens material is normally glass, plastic, or polycarbonate. Here’s what you need to know about polycarbonate lens glasses and the benefits of polycarbonate lenses for eyeglasses. What Are Polycarbonate Glasses?