Tuesday, June 2, 2009

Stem-Cell Contact Lenses Restore Sight in One Month

Researchers have restored sight in patients suffering corneal damage using a groundbreaking technique where contact lenses are cultured with stem cells.
Stem cells from the cornea stick to contact lenses - employing three patients who were blind in one eye, the researchers obtained stem cells from their healthy eyes and cultured them in extended wear contact lenses for ten days. The surfaces of the patients’ corneas were cleaned and the contact lenses inserted. Within 10 to 14 days the stem cells began to recolonize and repair the cornea.
Of the three patients, two were legally blind but can now read the big letters on an eye chart, while the third, who could previously read the top few rows of the chart, is now able to pass the vision test for a driver’s license.
The research team has applied for funds to continue the project.

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