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Dissolving Contact Lenses

Put them in but never take them out.
 
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The Dissolving Contact Lens dissolves in your eye the same way that the listerine breath strips dissolve in your mouth but they do so over the course of the day and completely dissolve once you go to sleep. Keeping your eyes closed for more than 2 hours will require you to put in a new pair.
Jscotty, Apr 26 2009


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Annotation:







       The dissolved contacts become part of the aqueous fluid in your eye that eventually evaporates or is discharged as tears. The crusty residual substance around the corners of your eyes is a result of this discharge. The substance made up of the contact lenses will be part of this.
Jscotty, Apr 26 2009
  

       ... you do know what contact *lenses* are ?
FlyingToaster, Apr 26 2009
  

       Yeah, they wouldn't lens very well after the first hour. It might be better instead to have a thin layer of a transparent, water-reactive explosive built into the lenses. Then, after 16 hours wear, water from your eye would permeate the slightly-porous outer layer and kaphloom! the lenses would self-eject.
MaxwellBuchanan, Apr 26 2009
  

       Sounds like that would hurt. But if explosives is the only thing that works, then we'll just have to add it to the warning label.
Jscotty, Apr 26 2009
  

       I like it very much. The material would have to have some rather strange properties to only dissolve after closing of the eye for x minutes (the eye is kept wet the whole time, after all), but maybe it would be about temperature, or light reactions.
loonquawl, Apr 27 2009
  

       Which raises the question: do chemicals exist that will decompose when exposed to darkness, instead of to light? Perhaps some unstable material that needs constant influx of energy?
Forthur, Apr 27 2009
  


 

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