An attempt at preventing asthenopia among VDT workers.
We report the results of 3 surveys of visual display terminal (VDT) users who took a minibreak during which they viewed a stereoscopic image of a repeating parallel pattern showing planets. The single image stereogram method employed is called Stretch Eye (TM), and we evaluated the effects of Stretch Eye (TM) on asthenopia. An accommodative relaxation of about 1 D was observed in participants while they were gazing at the image. The employees of 2 information technology companies were evaluated according to a visual analogue scale (VAS) for subjective symptoms of asthenopia and eyesight. The results showed that Stretch Eye (TM) was effective in easing visual fatigue due to VDT work and it improved eyesight under working conditions.
Omori
Masako
M
Graduate School of Medicine, Nagoya University, Nagoya, Japan.
Watanabe
Tomoyuki
T
Takai
Jo
J
Takada
Hiroki
H
Miyao
Masaru
M
D001248:Asthenopia / Q000503:physiopathology / Q000517:prevention & control*; D016288:Computer Terminals; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D009126:Muscle Relaxation / Q000502:physiology*; D009784:Occupational Diseases / Q000503:physiopathology / Q000517:prevention & control*; D009799:Ocular Physiological Phenomena