Chase has had difficulty sleeping recently and gets frequent sinus headaches. He discovered that he is squinting more when he reads. His grades at school have also been dropping.Which symptom might warrant a trip to an eye specialist?

Squinting more while reading can be a sign that Chase is having trouble seeing clearly, so an eye specialist can check his vision. Difficulty sleeping, headaches, and falling grades may have many causes; squinting while reading is the symptom most directly linked to a vision problem.

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