The German Institute of Applied Work Environment said that sitting in front of computer monitors for long periods of time causes eye strain, and the appearance of some problems, such as itching and dry eyes, in addition to tension and tension in the neck and shoulders, and gave the Institute some tips and guidance, which helps the employee to avoid the hassles of work For prolonged periods mediated by the computer. He explained that the employee should avoid glare and reflections in the office as much as possible, in addition to that there must be enough space between the eyes and the screen, experts always advise that the distance between 45 and 60 cm. Moisturizers and plants work to reduce humidity in the office. It is also important for the employee to diversify activities and tasks from time to time, such as looking away from the screen, winking at the eyes, moving or closing them for a few minutes. German experts have also been advised to reduce the use of smart phones and tablets after work is completed, and that the eyes must be examined regularly to detect any problems or diseases early.