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Eye Repairs
We've used eye glasses for centuries to correct our vision from the outside, but glasses don't help if the inner parts of our eye are damaged or diseased. Researchers have made major strides in recent years toward finding ways to repair or replace eye parts. For example, the lens is the transparent, curved part of our eye that lets light in and focuses images onto the back retina) of the eye. Sometimes the lens gets damaged, and sometimes it just gets clouded over-the condition called cataracts-as we get older. Until fairly recently, these conditions resulted in restricted vision or blindness. Now, surgeons can take out the damaged lens and replace it with a ceramic lens crafted of transparent aluminum oxide.
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