Re:Electronic contact lens displays pixels on the eyes
by delinka on Tuesday November 22, 2011 @08:42AM
(#3265451)
How do you either keep them turned "upright" or detect rotation for updating the images? Contacts slide around in the eye a bit and their shape keeps them on the eye's lens pretty well, but there's no asymmetrical shape for keep the contact lens from rotating.
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Re:Electronic contact lens displays pixels on the eyes
by cstuder on Tuesday November 22, 2011 @08:46AM
(#3265463)
Some lenses, I think mostly the soft ones, are asymmetrical: They are intentionally heavier on the bottom and let gravity rotate them into place.
Re:Electronic contact lens displays pixels on the eyes
by gmac on Tuesday November 22, 2011 @09:23AM
(#3265588)
Yes -- those are toric lenses, for correcting astigmatism. Unfortunately it makes them rather thicker and less comfortable than the usual ones.
Re:Electronic contact lens displays pixels on the eyes
by mietek on Wednesday November 23, 2011 @10:18AM
(#3270254)
Funnily enough, I just picked up today my first ever daily disposable lenses for correcting astigmatism. These are the most comfortable lenses I've ever worn, including regular daily disposables.
Re:Electronic contact lens displays pixels on the eyes
by jessriedel on Tuesday November 22, 2011 @01:07PM
(#3266574)
Still, there is going to be a significant amount of shake and sway as you move your eyes around. I wonder if you could correct it in software by tracking the movement of the lens with respect to the eye.