September 15th, 2015

In a race to cure blindness, three advances come closer to reality

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"Scientists have long known that while our eyes do most of the heavy lifting of sight—taking in particles of light, bending and refracting them, turning them into electrical impulses—we actually “see” with our brains. Between the eye and the mind, however, a lot can go wrong, and until recently, if someone’s vision started to go or was never there to begin with, there wasn’t much doctors could do about it. Now, thanks to an explosion of new research, scientists at a stage in biology where they “know a heck of a lot about the causes of vision problems,” says Dr. Paul A. Sieving, director of the National Eye Institute at the National Institutes of the Health. “When you know the cause of something, you can begin to think about how to ameliorate it.”


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