Computer vision syndrome ( CVS ) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time . Some symptoms of CVS include headaches , blurred vision , neck pain, fatigue , eye strain , dry eyes , irritated eyes, double vision, vertigo / dizziness , polyopia, and difficulty refocusing the eyes. These symptoms can be further aggravated by improper lighting conditions (i.e. glare [1] or bright overhead lighting) or air moving past the eyes (e.g. overhead vents, direct air from a fan).

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