Auto-focus glasses anyone?

[ik9000]

So the Israelis have come up with auto-focussing glasses (see here). The question beckons, for those folk not needing glasses to begin with, could these also be used to boost healthy eyesight?

[snedger]

Yes.

[peterb]

Probably make the near point closer, so good for very close work, but not for distance vision.

[Ttaskmaster]

The question beckons, for those folk not needing glasses to begin with, could these also be used to boost healthy eyesight?

How would they improve on already-perfect 20/20 vision?

The only thing they could do is perhaps lessen the extent to which the eye muscles stretch for normal focussing, but again that may atrophy the muscles and lead to deteriorating vision.

But how are they powered, anyway?
I can't see (har har) yet another rechargable device taking off in the market so well, especially as it's likely to be quite big and bulky compared with normal glasses...

[ik9000]

How would they improve on already-perfect 20/20 vision?

Which bus is that coming round the bend? Go-go gadget eye-zoom

[Ttaskmaster]

Which bus is that coming round the bend? Go-go gadget eye-zoom

Auto-focus, not telescopic zoom.

[badass]

How would they improve on already-perfect 20/20 vision?

20/20 Isn't perfect. It's just normal vision. Some people have 20/10 vision. i.e. they can see at 20 feet what a normal person can see at 10 feet.

[ik9000]

Auto-focus, not telescopic zoom.

can't a man dream in peace?

[peterb]

can't a man dream in peace?

Oh, so you want the X-Ray version then

[scaryjim]

20/20 Isn't perfect. It's just normal vision. ....

And most people with glasses are actually over-corrected. When my better half got her eyes burned out with lasers they corrected her to 20/20, and she couldn't believe how poor her vision was compared to correction with glasses

[GoryMadLogger]

If you dsid had auto focusing people who have glasses wouldn't be able to notice their vision getting worse as the glasses would always keep adjusting.