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School students that spend more time outside show fewer symptoms of near-sightedness. Get outside and keep your vision sharp! (that is, after you read this tweet of course) https://t.co/6VdPoFM3EK
School students that spend more time outside show fewer symptoms of near-sightedness. Get outside and keep your vision sharp! (that is, after you read this tweet of course) https://t.co/6VdPoFM3EK