Stem cell therapy for macular degeneration

The FDA has approved a new study aimed at fighting dry age-related macular degeneration.About 10 million Americans suffer some degree of vision loss caused by age-related macular degeneration, and that figure is expected to grow as more baby boomers become senior citizens. There is no cure for the disease, but last week the U.S. Food and Drug Administration gave a green light to an unusual clinical trial that seeks to restore patients' sight by employing human embryonic stem cells.

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