Science | July 01, 2009 | 1 comment

Dispensing Drugs Through Contact Lenses

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"Cambridge Eye-novations" of Cambridge, Massachusetts is developing contact lenses that can automatically dispense drugs to the eye for up to 30 days at a time.

The new contact lenses are also made from hydrogel, which includes a special polymer that holds the actual drug. The medication is slowly released at a rate controlled by the specific properties of the polymer and the hydrogel. Researchers have formulated a hydrogel and polymer combination capable of releasing drugs for a period of 100 days, well over the 30 day maximum imposed on single use contact lenses by the Food and Drug Administration.

The team also hopes to experiment with other drugs that can't currently be dispensed through eye drops but nevertheless may be beneficial to eye patients.
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