visual fatigue


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Related to visual fatigue: asthenopic

fatigue, visual

A feeling of weariness resulting from a visual task. It can be of ocular, muscular or psychic origin. However, there does not seem to be objective proof of a reduction in visual aptitude (e.g. visual acuity) accompanying visual fatigue. See asthenopia.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
References in periodicals archive ?
Several studies have been conducted to evaluate visual fatigue by using subjective ratings and physiological evaluation methods.
and Kuze et al., which made use of the Simulator Sickness Questionnaire (SSQ), which took a substantially longer time to fill.10,12 The data provided through the questionnaire sought to link 3-D viewing with associated symptoms of visual fatigue and VIMS.
Jonas, "Visual fatigue and discomfort after stereoscopic display viewing," Acta Ophthalmologica, vol.
Employees are entitled by law to request further eye tests at regular intervals if DSE work is considered to cause them visual fatigue. It is generally recommended that most people should get their eyes tested every two years but the frequency should be determined by clinical judgment and may depend on an individual's age and state of vision.
On screen work and visual fatigue and its course after ophthalmologic management.
From the above mentioned it is important to further investigate physiological mechanisms of visual fatigue and working productivity in PC users.
who showed that eye strain and visual fatigue were the most severe and frequently reported symptoms among computer users.
In the present study, illumination intensity was measured by luxmeter (Hugner model), visual fatigue was determined by eye fatigue questionnaire that is comprising 15 questions, and answers have been designed on 0-10 Likert range.
Despite the strange new perspective on the world, the device does not cause any nausea, motion sickness or visual fatigue, its creators claim in a paper they presented at the Virtual Reality Software and Technology conference in Toronto, Canada, this week.
high definition, precise control of the shooting conditions), they may also cause visual fatigue over different groups of people [4].
George Wald, Ph.D., the 1967 Nobel Prize winner for "discoveries in the physiological and chemical visual process in the eye" (he identified Vitamin A in the retina), wrote an article in Scientific American entitled "Life and Light" where he disproved other physiologists' definition of visual fatigue as "a deterioration in performance due to physical deprivation." Wald performed tests in his Visual Fatigue Lab at Harvard University and discovered that the closest causal relation to visual fatigue was not physical deprivation but simply "boredom." He proceeded to close down the lab.