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By Dr. Brian McDonough, Medical Editor

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Philadelphia (CBS) – When we talk about eyestrain we often think of people in their forties or fifties, but it is not a problem limited to just older people.

Eyestrain is a problem that everyone faces.

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Adolescents can face it when they are studying, reading or spending too much time texting or on the Internet.

We also see in children and adolescents where eyestrain occurs because they often don’t have the proper vision and the proper examination. In this group nearsightedness or myopia is often missed for many weeks. In other words, they need glasses and they’re trying to see something on the board and having difficulty.

This is another example where eyestrain can be a big problem.

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One of the most common symptoms is a headache: something you should think of if you can’t figure out why you are experiencing headaches.