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Custom Eyeballs Can Tailor Your Eyesight to Your Career, io9
"Need to see a thousand meters in the dark? Want one eye that's perfect for reading and another for long distances? Some eye surgeons are already at work reshaping corneas not only to fix patients' vision, but fit their careers. ... What do we have to thank for this custom technology? The space program. Wavefront technology, which was developed by NASA to improve the focus of the Hubble Space Telescope, has translated neatly to the human eye. The technology allows physicians to map the cornea and iris, enabling surgeons to make small, specific tweaks to the eye that result in custom eyesight made to order."
Wavefront Sensing, NASA IPP
This is a nice story, and indeed adaptive optics can lead to highly specific corrections to the cornea. However, it is complete shuck that this was "developed" to "improve the focus" of the Hubble. The principles of physical optics, active optics, and adaptive optics were all well advanced prior to the Hubble mission. In fact, the diagnosis of the HST spherical aberration would have been impossible had phase retrieval algorithms not been developed and understood well in advance of the mission. HST has done many wonderful things, but development of wavefront control is not among them.