GUNNAR Optiks is a company founded in 2007, specializing in treated eyewear designed specifically to be safety glasses and protect eyes from computer vision syndrome. The company makes marketing claims that the eyewear improves contrast and comfort, while reducing eye fatigue and visual stress, especially for people who spend many hours staring at digital displays. The study found "[no] scientific evidence for a change in accommodation , tear volume, or electromyography of the eyelid ".
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