This visor thing is the Re-Timer, which supposedly mimics the positive effects of sunlight by, yes, shining green lights into your eyes. How does that work out, exactly? Well, I watched the video below and I'm still not sure.
It was invented by a guy named Leon Lack, so I think whatever else you can say about it, the device is definitely Lacking.
And at $273.90, I'd suggest anyone with odd sleep patterns just try warm milk and/or whiskey instead. That's cheaper still, right?