Computer-eye interactions put a heavy demand on our visual system, whichwas developed over centuries to serve man as "the hunter." Only in the lastcentury has man begun to rely on his reading vision for his survival. Heavyloads of close reading or computer work can induce "distress".
Symptoms include: eyestrain, headaches, itching and burning, scratchysensation, blurring of vision, doubling of vision, and color perceptionchanges . Indirect symptoms can be : neck, shoulder, back and wrist pains,fatigue, and general stress, leading to lower job performance and decreasedvisual efficiency.
A National Academy of Science report suggests that simply improving theergonomic condition of the worker could reduce vision complaints by up to39% . The computer work environment includes many different factors that can be controlled, including lighting, user position, computer placement,noise, air quality.
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