Science
Smart Contacts Will Detect Glaucoma Before It Blinds You
Posted by Gizmodo US Edition at 7:00 AM on August 10, 2008
Researchers at UC Davis have designed contact lenses that can give you an in-eye checkup to make sure there's nothing wrong, as well as dispense medication automatically when needed. The "smart" lenses use an organic polymer called PDMS (polydimethylsiloxane, if you're nasty) that detects eye pressure and sends that data to a computer--important updates to get if you're at risk for glaucoma.
Glaucoma, a disease that causes a loss of cells in the optic nerve, is the second leading cause of blindness worldwide. Unlike the first leading cause, cataracts, it's irreversible, making the ability to keep tabs on warning signs even more crucial. UC Davis will start clinical trials of the smart contact lenses in humans soon. [UC Davis via io9]

Comments (AU Comments · US Comments)
There are currently no AU comments for this post.
Tim Faulkner
Posted 7:22 AM 10/8/08
The one drawback: the contacts cause glaucoma.
Tim Faulkner
UofITom
Posted 8:04 AM 10/8/08
can i see through that????
UofITom
kyel57
Posted 8:03 AM 10/8/08
my music teacher has glaucoma, it's not reversible, but you can take medicine to slow it down, it's not like if you don't catch it soon enough your entire vision is shot, it blinds you slowly
kyel57
Dreadfish
Posted 7:43 AM 10/8/08
If I get this, I want them to make that sound effect from the Million Dollar Man every time I move.
Dreadfish
Curves
Posted 8:30 AM 10/8/08
I heard that smoking pot helps prevent glaucoma so I liberally applied this method back in the day.
You know, just for medicinal reasons. ;)
Curves
KryptonZero
Posted 8:32 AM 10/8/08
I'm 32 years old and I have Glaucoma, currently it is in a treated phase. I don't see a use for these contacts, if you are someone who has to see an eye doctor for getting prescription for glasses or contacts, you already get tested for high pressures. If you do not normally get your eyes checked once a year, you're at the biggest risk of going blind from glaucoma.
Glaucoma causes blindness because the ducts that relieve pressure in your eye stop functioning correctly. This pressure begins to press in on your blood vessels causing the blood to stop flowing to your optic nerve, killing the tissue and causing blindness.
As for treating the glaucoma with drops or medicine, that's an option but you can also choose to have the ducts in your eyes laser treated in order to get them functioning correctly. This laser treatment does not involve any burning or cutting, it merely generates a reaction in the ducts that causes them to function better. Treatment has to be reapplied every 6 years or so, much better then daily drops.
This contact doesn't seem to address the issue that people like myself may have, a very thin cornea. If your cornea is thinner then normal, pressure tests may register in the normal range when in fact you are are a much higher risk of glaucoma. Currently the only way to have the thickness of your cornea tested is with the use of an optical ultra sound.
I'm lucky, the only reason my glaucoma was detected so early an successfully was because the pressure in my left eye was always much higher then the right (They should be the same or close). I think the best prevention to people going blind from glaucoma is having your eyes checked regularly, weather you need a perscription or not.
KryptonZero
aliskaba
Posted 9:00 AM 10/8/08
@Tim Faulkner: That's the feature, they cause it, to prove it works. So it has 100% success rate.
aliskaba
aliskaba
Posted 8:59 AM 10/8/08
Really, they are xray specs for the hot chicks.
aliskaba
badhatharry
Posted 1:08 PM 10/8/08
When they detect glaucoma, do they automatically print out a prescription for some anti-glaucoma "medicine?" If so, how do I fake glaucoma with these things?
badhatharry
Xenobiologista
Posted 2:03 PM 10/8/08
I DON'T CARE what Wikipedia says, PDMS is a silicone and therefore not an "organic" polymer. Organic means it's got a carbon backbone.
Also, it's not the PDMS that's detecting pressure changes, it's the silver circuitry overlay.
Xenobiologista
Jagged Toaster
Posted 10:45 AM 11/8/08
@KryptonZero: Wow, reading that made my eyes feel funny. Ha.
Jagged Toaster
bobx3
Posted 2:47 AM 12/8/08
This is really amazing (coming from someone who is REALLY at risk for glaucoma).
bobx3
LagmastaC
Posted 7:59 AM 10/8/08
Oh, I thought that the headline meant that it would diagnose you and then make you go blind.... heh
LagmastaC