This symptom has been caused by excessive using of the eye. The decrease of blink times will cause lack of tear hyposecretion that lead to dry eyes and visual fatigue. This time you need artificial tears to relief the dry eyes and have a good rest after that. The next time you go to work, please soften your computer screen's light, and lower the intense of contrast, which will ease your eyes. Help yourself to have a distant view every two hours for 10min. If your work will ask you use computer in a long time, you need to eat some supplement or fruits which full of Vitamin A & B, and carotene. They are the necessary nutrients which would protect your eyes every day. Carrot, Chrysanthemum tea, sesame, bean, milk and wheat germ are all the great choice for you. At the meantime, eyes massage will bring more comfort to your eyes.