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Other Biotechnology News
by ruth on July 15, 2008
Researchers have shown that hyaluronic acid, a common fluid naturally produced in the human body, can be used as a natural moisturizing agent in contact lenses to prevent eye dryness and increase wearer comfort. The substance can be entrapped in existing contact lens material without affecting optical properties.
Source
It was also found that using hyaluronic acid considerably reduces the build up of proteins which can cloudy contact lens material, the cause of up to 30 per cent of all after-care visits by contact lens wearers to optometrists.
While manufacturers have not yet produced contact lenses with hyaluronic acid, the researchers remain hopeful.
"We've shown that the process works," said Heather Sheardown, professor of chemical engineering at McMaster and a member of the McMaster School of Biomedical Engineering, who was involved in the research. "We're optimistic that a manufacturer will see the benefits of using this naturally based technology to provide contact lens wearers with greater comfort and convenience."
Source
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