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The researchers estimate that the lenses cost around US$200 per pair to make.
Researchers have made the first contact lenses to convey infrared vision — and the devices work even when people have their eyes closed.
Soon, it will not even be an exaggeration to say that China is beating the US with their eyes closed 
Now if we can get lenses that give people tetrachromacy.
I think that would be only possible with genetics, and maybe only when young, since it'd be outright adding new perception rather than using existing channels like this... But you could possibly emulate it with goggles that spread out the target colours and squash the rest of the spectrum?
I kinda want a tapet lucetum myself...