Visual fatigue with work on visual display units: the current state of knowledge

Visual fatigue is the most frequent health complaint of visual display unit (VDU) workers. In field studies on office populations reported frequencies of complaints vary between 30% and 90%. In addition, many workers are afraid that their eyes may deteriorate through VDU work. On the other hand, visual fatigue is also a common health complaint with other types of work. In “classical” office populations the frequency of complaints varies between 20% and 60%.