01/27/2014 09:42 am ET Updated Jan 27, 2014

Digital Device Use Leads To Eye Strain, Even In Kids

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One day after Sarah Hinkley had been working on her computer for about five hours, she noticed her eyes started to burn and feel dry. "My focus became blurry, like I was looking through a haze," she says.

As an optometrist, Hinkley knew exactly what was wrong. She was suffering from digital eye strain, also known as computer vision syndrome.

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