Pressure-Sensing Contact Lenses Monitor Glaucoma
Pressure-sensing contact lenses developed by University of California researchers have an embedded pressure sensor. This could lead to glaucoma-sensing contact lenses able to continuously monitor the eye.
(Pressure-sensing contact lenses for glaucoma with pattern of conductive silver wires)
Tingrui Pan, assistant professor of biomedical engineering, and postdoctoral researcher Hailin Cong started with a material called polydimethylsiloxane (PDMS). They developed a method for placing powdered silver on the PDMS in a precise pattern, to create conductive wires. The silver also has antimicrobial properties.
The researchers were able to shape the PDMS-silver into a contact-lens shape, and show that it could function as a simple pressure sensor. Glaucoma, a build-up of pressure in the eye, is a leading cause of blindness worldwide. A contact lens that could continuously measure pressure within the eye and relay the data to a computer would allow doctors to learn more about glaucoma and improve patient treatment.
The researchers plan to apply for approval to begin trials of the lenses in humans, Pan said. They are collaborating with Professor James Brandt of the Department of Ophthalmology at the UC Davis School of Medicine.
In their 1992 story The California Voodoo Game, Larry Niven and Steven Barnes wrote about scleral contact lenses with embedded circuitry.
In a 2001 story, Fast Times at Fairmont High, Vernor Vinge wrote about smart contact lenses with embedded circuitry. This field is progressing in real life; see Circuit Smart Contact Lens, Presaged by Niven, Barnes and Vinge.
From Smart Contact Lenses via MedGadget
Scroll down for more stories in the same category. (Story submitted 8/9/2008)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 1 )
Related News Stories -
Skin Electronics Can Show Electrocardiogram
'... the young men in the streets who applied polyimde OLED body film to their bared shoulders.' - Chen Qiufan, 2019.
Neurodevices For Consumers? Neuroethicists (And Philip K Dick) Say 'Caveat Emptor'
'They tried to use it today and it wouldn't work. No colors and no ceph patterns, neither one...' - Philip K. Dick, 1977.
BrainEx Restores Some Activity To Severed Pig Head
'... they placed the brain in a special solution, having all the properties of Nursing the brain cells.' - Edmond Hamilton, 1929.
Purdue Pharma Ready To Profit From OxyContin Use Or Addiction Recovery
'It may be organic damage. It may be permanent. Time'll tell, and only after you are off Substance D for a long while.' - Philip K. Dick, 1977.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Nobe 3-Wheel Electric Vehicle Parking Like I, Robot
Spidercar, Spidercar, does whatever a spidercar does.
Michelin Self-Sealing Tires On Ford's Explorer
'...a seal of compressed plastifoam to save the air.'
Mushroom Eats Plastic, Saves Planet
Fungus Amongus, SaveUs!
Juggalo Face Paint Disrupts Facial Recognition
'... designed to foil facial recognition systems.'
Mojipic Smart Voice Vehicle Emojis
KITT, what's your response?
Unusual Twist On Woman Dates Robot
'My hearing, vision and awareness went along with that excellent imitation of a young Adonis...'
BrainNet Triple Telepathic Gaming Threat
'In the gloomy half-darkness the three idiots sat babbling.'
AVAS Noisemakers Required For EVs By EU
'...a sound tape to supply the noise of a soi-disant "[internal combustion]" engine...'
Pun Generation Via Neural Nets
'You said you wanted him to be able to distinguish between laugh-power in different gags...'
Blood Battery Robotic Fish
'With one fluid motion, it surged forward, plunged, and was gone.'
Lightyear One Solar-Powered Electric Car (Design By Heinlein)
'It drew its power from six square yards of sunpower screens on its low curved roof.'
'Agression Detectors' Don't Work When Spying On Students
'The professional agitators had also learned how to modulate their voices below the danger level...'
Mining Of Golden Asteroid Foretold In 1898 Science Fiction
'This must be a golden planet—this little asteroid.'
Miners! NASA Wants To License RASSOR Excavator
'The borers had been dismantled and packed away.'
Bee+ Robobee Now With Four Wings
'It was a tiny thing, scarcely more than an inch and a half in length...'
CNSILK Robotic Spider Builder
'We could certainly spin a web right through the Solar System, if we can think of a good use for one.'
More SF in the News Stories
More Beyond Technovelgy science news stories