Molecules designed to slow the production of toxic byproducts in the eye by making it less sensitive to light are now being tested in patients with macular degeneration, the leading cause of blindness in people age 50 and older. If successful, the compounds would provide a much needed therapy for the disease, which affects more than 15 million people in the United States.

via Technology Review: Molecular Sunglasses for Macular Degeneration.