Not seeing clearly can hamper a child's academic achievement, social development and long-term health, research shows. The right pair of glasses can make a big difference.
Republican Sen. Charles Grassley of Iowa and Democratic Sen. Amy Klobuchar of Minnesota want drugmakers to stop wasting money by making eyedrops that are too big.
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Gregory Matthews has glaucoma and uses prescription eyedrops. The dropper's opening creates a bigger drop than he needs, causing him to run out of his medication before the prescription is ready to refill.
Matt Roth for ProPublica