A lens has been built that is thinner than the waves of light it focuses. Such lenses, made from light-warping metamaterials, might someday replace the heavier glass lenses used in everything from microscopes to phone cameras. In a normal lens, a curved glass surface a few millimetres or even centimetres thick redirects light rays to a common focal point. To improve the image – say, to take out distortions, or make sure different wavelengths of light all get focused correctly – you have to keep adding glass layers. As a result, cameras, microscopes and telescopes are limited in part by the size and heft of the lenses they require. Designers say that virtual reality has the same problem. In order to having high-resolution imaging systems, users end up wearing heavy helmets. Metamaterials, by contrast, can bend light towards a common point using structures that are as small or smaller than the wavelengths of the light waves themselves. https://www.newscientist.com/articl...-thinner-than-the-light-it-bends-and-focuses/ I wonder would it be possible applying these metamaterials to contact lenses?