There’s a reason so many ’70s kids ran around with a Steve Austin doll glued to one eye.* The emphasis in this story is on the benefits for the blind, but the implications of “cracking the code” the brain uses to interpret images from the retina are far greater, of course.
Versatile vision is fun. My vision, uncorrected, is so bad that one of my eyes actually magnifies images. It’s a fun parlor trick, but it’s actually turning out to be useful to be so nearsighted as I’ve aged. Aging sucks if you like to read, kids, because, you progressively lose the ability to focus on things within reach of your arms. And as much as I read, if I get tired of holding the book/Kindle waaaaaaay out there, with my natural nearsightedness I can just pop off the glasses or contacts and voila! I can hold the book as little as an inch away from my face if I want and still focus like a champ.
Versatile vision, even as annoying as mine, is fun enough that I can guarantee there’s going to be a market for modular eyes — one set for near, one for far, one for night vision, one for stargazing — you get the idea.
*Our parents wouldn’t buy us binoculars?