I shared this idea of using low intensity laser to beam images and video directly onto a persons eyes. The laser is harmless but scares people when they hear about it. My idea is that someday you might have four tracker/beamers that track your eyes in a room from four locations and beam images to your eyes. This is better for an AR experience because laser images can be opaque and appear like any image in the real world.
If the trackers track the eye they could also track hand movement so you can interact with the AR/VR world. Possibly using acoustics to add the feeling of touch. No doubt lasers can also do this as well. The downside is that we do not at the moment have the speed to track pupils in eyes of people at a distance.
So, in comes Vaunt. The laser is built into the glasses so a very small amount of adjustment is needed and you don;t need tracking for the laser.