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Anton Petrov:
https://www.youtube.com/watch?v=wQh9ezBdoPM
Also cross-posted from: https://programming.dev/post/31467824
A team of physicists at ETH Zurich has created a tiny metalens that can half the wavelength of incident light.
They have achieved this using a special metal-oxide lens material called lithium niobate and through nanoscale pattern, stamped into the material.
Such metalenses could be used as a security feature on banknotes or in the fabrication of ultra-thin elements for cameras.
Seeing what happen to my wife eyes (that use contact lens) when even the smallest dirt gets in her eyes, I would say that in a open combat zone the googles seems to be way more effective.
Maybe the best compromise would something like a simple sunglasses, the same as the glasses that filter the blue light.