If you’ve ever suffered from dry, irritated eyes or struggled to fall asleep after a long day of staring at your computer ... blocking glasses will be easy to pick up and use.

There are many futuristic multi-functional smart devices, however, only some of them become as popular, as smart glasses are.

The only giveaway is ... which makes these smart glasses less expensive than other AR prototypes,(but definitely not cheap) and also better looking. You can also use prescription lenses in these ...