At CES, smart glasses were unveiled that replace multifocal lenses with real-time focus adjustment, no cameras or screens, ...

Finnish eyewear company IXI is gearing up to launch smart glasses that look just like ordinary spectacles, but are able to “autofocus” based on the perceived needs of the wearer.

Left and right Diagram showing how left circularly polarized (LCP) light is converted by the bifocal lens into separated beams of LCP light and right circularly polarized (RCP) light. (Courtesy: Fan ...