Ergonomics is the science that studies the relationship between people and their work environments. By understanding the abilities that people have, we can design work environments that conform to those abilities. The appropriate use of ergonomics can make jobs more productive and efficient, and reduce work-related discomfort and injuries.
Of all our senses, we rely most on vision to provide us with information. If we hear the sound of a duck, we trust our visual system to tell us if what we have heard is a duck or a hunter trying out a duck call. Because of this, we will adjust our posture to gain a better visual picture. As an example, instead of looking out to the side of our eyes at an object, we will usually turn our heads. The eyes lead and the body follows.
The visual system has developed to conform to the world we live in. In that environment, things that are farther away are usually high in the visual field and things that are closer are usually low. If you look up, what do you see? The sky. If you look down, you see the ground. The visual system functions with that in mind. Several of the articles on this website discuss how this happens and what changes the visual system makes when gaze angle changes. They demonstrate why eye-level monitor placement goes against the capabilities of the visual system and why Nova is "The Natural Solution."
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