Eyestrain, often caused by long hours staring at a computer monitor, can lead to headaches, double vision, burning and tightness in the eyes, and other symptoms, depending on the person. How do you avoid eyestrain, you ask? An article called “Eyestrain Basics” from Office Ergo offers some good information. They cover glare, contrast from light and dark, problems caused by “distance viewing” (when the screen is too close or too far from the eyes), and monitor height. If you’re having trouble with your eyes (or are getting suspicious headaches), the article is worth a read: