Pinhole 'glasses' have been around for sometime already, but only recently available over here. Don't expect some form of miracle. They are not made from glass but just some sort plastic/card material with lot of holes in them.

As simple as that.

It is only recommended to use them in stationary or slow moving situations like reading a book, watching TV etc. That's because you have to look through the holes to focus on something. If your eyes are rapidly moving ,they will be temporarily obstructed by the parts which does not have holes so your reaction will slow considerably.

It is only meant to train and improve your eyesight and be less dependent on your regular glasses.