Contact “High” Lenses That Deliver Drugs

July 23rd, 2009

“Dry-eye sufferers and glaucoma patients may soon be able to trade their messy eye drops for a contact lens that delivers medication gradually over time.
Researchers have been working for nearly a decade on drug-dispensing contact lenses that could deliver eye medication more effectively, but they’ve struggled to design a lens that releases a continuous supply of the meds. Now, scientists report that they’ve created a contact lens that can deliver a high concentration of antibiotic at a constant rate for more than 30 days.
The main way our lens differs is that it can provide large amounts of drug released at constant rates for long periods of time, which previous discoveries have not been able to do,” said drug-delivery researcher Daniel Kohane of Harvard Medical School, who co-authored the paper published in the July issue of Investigative Ophthalmology & Visual Science. Past lenses have only been able to release a small amount of drug over a long period of time, or a substantial amount of drug for a day or two, he said.” Read more

Amazing…

Source Wired Science

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