Eyestrain is the discomfort that is caused by fatigue when the eyes become tired and the result is often a headache, particularly if you’re prone to migraine. The headache is often accompanied by a dull ache around the eyes and problems with your vision. The eyes themselves are dry and painful. Some of the most common factors that result in eyestrain are: -keeping your gaze fixed on an object for a length of time. The eyes are designed to move between near and distant objects and a prolonged period of time spent in a fixed stare at an object like a computer monitor causes strain. This training is worst in the case of objects that are viewed in close-up. -inadequate lighting at your workplace Poor lighting forces your eyes to work harder to focus and this could result in strain. -glare at the workplace Glare can be direct as in the case of overhead lighting that is too bright or working with the sun in your eyes. Indirect glare occurs when light is reflected from surfaces such as a computer monitor. -contrast. Contrast is the difference in brightness between what you are looking at and the immediate surroundings. For instance, looking at a computer monitor against a background of a window could cause eyestrain. Measures to reduce eyestrain include: – taking a break at work every hour or so to relax the eye muscles. Try closing your eyes, blinking vigorously or rolling your eyeballs around. -check out the lighting at your workplace and eliminate all sources of glare. -avoid working at a computer in darkness. You should also avoid watching TV or playing 3-D games in the dark. -get your vision tested regularly particularly if you wear spectacles or contact lenses -make sure that the contrast setting on your computer screen or your television is not set too high.