The Everything Glasses: Invention

We have glasses for everything. To see in the dark, to see under water, to see in the light, to see the concept of sleep, and even just to plain old see.

What about instead of all of these different kinds of glasses, we just make a single kind of frame. Then have interchangeable lenses. The underwater ones would Be like columns that touched beside your eyes. The sunglasses ones would be tinted Obviously. There sleep ones would be soft. 

I know it will never work, because it wouldn't make more money, but i cam dream. Copywrite me, obviously.