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Nanodiamond-embedded contact lenses may improve glaucoma treatment
Date:2/18/2014

By 2020, nearly 80 million people are expected to have glaucoma, a disorder of the eye that, if left untreated, can damage the optic nerve and eventually lead to blindness.

The disease often causes pressure in the eye due to a buildup of fluid and a breakdown of the tissue that is responsible for regulating fluid drainage. Doctors commonly treat glaucoma using eye drops that can help the eye drain or decrease fluid production.

Unfortunately, patients frequently have a hard time sticking to the dosing schedules prescribed by their doctors, and the medication when administered through drops can cause side effects in the eye and other parts of the body.

In what could be a significant step toward improving the management of glaucoma, researchers from the UCLA School of Dentistry have created a drug delivery system that may have less severe side effects than traditional glaucoma medication and improve patients' ability to comply with their prescribed treatments. The scientists bound together glaucoma-fighting drugs with nanodiamonds and embedded them onto contact lenses. The drugs are released into the eye when they interact with the patient's tears.

The new technology showed great promise for sustained glaucoma treatment and, as a side benefit, the nanodiamond-drug compound even improved the contact lenses' durability.

The study, led by Dr. Dean Ho, professor of oral biology and medicine and co-director of the Jane and Jerry Weintraub Center for Reconstructive Biotechnology at the UCLA School of Dentistry, appears online in the peer-reviewed journal ACS Nano.

Nanodiamonds, which are byproducts of conventional mining and refining processes, are approximately five nanometers in diameter and are shaped like tiny soccer balls. They can be used to bind a wide spectrum of drug compounds and enable drugs to be released into the body over a long period of time.

To deliver a steady rele
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Contact: Brianna Deane
bdeane@dentistry.ucla.edu
310-206-0835
University of California - Los Angeles
Source:Eurekalert

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