Specifically, I wanted to bring up an unrelated topic...so mod me offtopic now. I recall some years ago a presentation by a researcher where they had made a hologram of a lens, corrected by some program to delete the flaws in the glass of the original optics. It was perfectly flat, and had a decent magnification power. To that end, I wonder; is this technology the final result of that one? And, if it is, why aren't they using the converse (making better lenses out of holograms) to make optically corrected contact lenses, and replacement corneas?

I'm just wondering...