If you don’t have a 3D display, choose “no glasses” and “left image only” in the YouTube viewing options.
Now this is pretty darned cool! Imagine wearing AR glasses that let you see beneath the skin! It’s not X-Ray vision persay, but Evena Medical has partnered with Epson to make it a lot safer for nurses and medical staff use their needles and pin pricks with a lot more accuracy (if you’ve ever been a hospital patient, you will appreciate this!).