it's just a bunch of LED's in a ring. The 'smart' part is the person selling these...

It's amazing what the eye can adapt to. The story of the man who wore the glasses that turned everything upside down... and his brain just adapted to it and he saw things normally... is fascinating to me.

And then there's my eyes. I have severe double vision (as a result of surgery last year) and my brain is just like "meh, suck it up"; and I'm left walking into things on regular basis because there's two of everything. How come _his_ brain figured out upside down, and mine can't figure out 2 of everything? (I'm not actually asking, just complaining a bit /sigh)

So wear slightly weaker glasses? Yep.

Nitpicking, but training eye muscles to tighten/loosen and thereby change the shape of the eyeball is more along the lines of what the technique apparently claims to do, and OP is asking about. Orthokeratology changes only the shape of the cornea, not the eye ball itself; it's a bit like talking about making a telescope physically longer/shorter vs. simply switching out the lens at one end for a different one.