Read on as we explore causes for computer related vision problems. As humans we are remarkably adaptable to our environment. The modern workplace exposes us to an environment where most targets we need to see during eight to ten hours of our day are at close distances. As a result, it is not surprising that we adapt by becoming more nearsighted. Adaptation to looking at objects at near gradually worsens our distance vision.
Many people suffer some degree of eyestrain when working on their computers.
The most common problem affecting most computer users is improper focus. Vision is a function of how far away an object to be viewed is from us. When viewing objects closer than 20 feet, the eye has to focus, or work to see clearly. In order for the eye to focus on an image, the visual system must first separate object from background. The visual system uses contrast between object and environment to judge the difference.