This sounds really stupid. This will cause some kind of horrible accident if it gets too popular and then the company will get sued out of business. Plus I can't imagine it would be good for their eyes to do that. It seems like if you're constantly wearing blurry vision lenses that it could harm your real eyesight too permanently if left on too long. Also if you can't control your urges without some special glasses you need some serious help.
This reminds me of that thing in Saudi Arabia where the one cleric was saying that Muslim women should cover one eye all the time and only look at things with one eye as to be more modest. Doctors were saying this was a bad idea because it could lead to blindness in the covered eye.