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Cataracts

During normal vision, light first passes through the cornea, which is the clear covering of the eye, and then through the pupil, which is actually a hole in the iris or colored part of the eye. The li...
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Many Teens 'Vaping' for Flavor, Not Nicotine

Study found that only about a fifth of 12th graders who used an e-cigarette used a nicotine substance

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