What the hell is a Focal Surface Display?

Ask Oculus, they’ve invented one Oculus has announced what they call groundbreaking technology, Focal Surface Display. The new technology is designed to improve the vergence-accommodation conflict that impacts today’s VR headsets.  Oculus has built a first binocular multifocal testbed with integrated eye tracking and accommodation measurement, which will make wearing headsets more comfortable for longer viewing.  To back up a bit, vergence-accommodation conflict happens when your eyes focus on the wrong part of the image due to distance confusion, it’s the kind of thing that can make you cross-eyed, and in some cases cause vertigo. It can occur because not