Computer Vision Syndrome (CVS)

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Computer Vision Syndrome (CVS)

Abstract:

Computers are being used for many different reasons all across the world. Computers are used in the work place for documentation and to keep records of clients. The question that will be answered is how does the computer monitor affect an individual during use? The anatomy of the human eye will be addressed to give the reader a better understanding of how light travels through the eye. Computer Vision Syndrome, also known as (CVS), is an effect of gazing into a monitor for long periods of time, and will be discussed to give the reader a clear illustration of the negative effects of the computer monitor. Computer monitors are used in everywhere in many types of lighting, and workplace lighting is an example that will be discussed. The factors that contribute to CVS will be discussed, the symptoms, and finally ways to prevent CVS will be addressed so that the reader will be aware of what can happen if they are sitting in front of a computer for a long duration.

How does the computer monitor affect the individual during use? To answer this question, I will address the structure of the pixel and the anatomy of the eye. The human eye is very complex system that responds to many different types of light waves. The light waves enter through the cornea, which is a curved thin membrane that bends the light that passes through. The pupil is the part of the eye that contracts or dilates in response to a given amount of light. For example, if an individual stands in a well-lit room, then the pupils would be constricted because there is too much light. If that person turns the light off, then the pupils will dilate. They dilate, or become bigger because the eyes want to see what is going on. While an individual type on the keyboard in front of the computer monitor, the pupils act the same as in a lighted room versus as dark room. The images that one sees on a monitor such as graphics are made of small pixels. Pixels are the result of an electron beam striking the phosphors coated rear of the surface of the screen (Watt, 2004). Outside of the pixel is less bright than the center of the pixel (Watt, 2004). It is the pixel, which makes it hard for the eyes to focus.

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