Live 3-D imaging is one of the hottest topics in optics today, transforming medical imaging capabilities and delivering the immersive experience behind augmented and virtual reality. During The Optical Society’s Light the Future centennial program in Heidelberg, Germany on 26 July, Dr. Joseph Izatt of Duke University and Microsoft’s Bernard Kress gave an insider’s look at how these technologies are advancing medicine and changing the future of how we interact with computers.