Two strategies to reduce the impact of short-wavelength enriched light emissions were tested. First, the blue-blocking, orange-tinted Pyramex Ztek Safety Eyewear was very effective in decreasing the intensity of the short-wavelength/blue light emissions. Second, the Kids Sleep Dr app, which allowed for selection of a “sleep-aware” palate of colors on the device, was also successful in reducing short-wavelength light emissions, but also changed the spectral profile completely.
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These measurements were followed by testing the two different strategies designed to reduce the output of short-wavelength enriched light emissions. The first strategy involved testing the impact of blue-blocking (orange-tinted) glasses (Pyramex Ztek Safety Eyewear). These were tested by holding one of the lenses of the glasses 2.5 cm in front of the spectrometer probe. The second tested “Kids Sleep Dr” (a sleep diary/behavioral advice app intended to help parents solve their children’s sleep problems) (). As this app is designed to be used during the evening and at night, its developers took this into account and chose a “sleep-aware” palate of colors accordingly. This is the only app we were aware of at the time that employed this strategy.
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