Light that is visible to the human eye is referred to as visible light and classified as in HEV (High Energy Visible Light) and LEV (Low Energy Visible Light). It comprised of the following colors: red, orange, yellow, green, blue, indigo, and violet.
However, invisible light, such as ultraviolet light is undetectable to human eye, that is why we have sunglasses protection to our vision. How about vision detectable blue-light (380nm ~ 460nm~500nm) and particularly artificial harmful blue-light (420nm ~ 460nm)?
Medical researches as early as 2001 had already determined continuous exposure to HEV blue-light (wavelength in the 380 - 480 range) will seriously damage our retina. Later years of 2013, 2014, 2015 and 2016 on medical, scientific, technology news have further identified and clearly stated the actual harmful blue-light wavelength range that could damage our vision is from 420nm ~ 460nm, ±10nm, in the visible color spectrum, which most likely can be found in our daily use LCD/LED screen display devices. This has been proved to be most harmful to the eyes because it has similar or even serious impact to our precious vision just like ultraviolet (UV) light (10nm ~ 380nm) does.
The interval of this wavelength exhibits colors between indigo (420nm) and blue (460nm), might able to causes artificial blue-light hazard on the retina.
Therefore, in contemporary times, humans frequently stress their eyes by staring at those LCD/LED display screens or reading at close ranges for long periods of time, resulting in eye fatigue, blurry vision, myopia progression, dry eyes, and sore eyes. Exposures to artificial blue light (420nm ~ 460nm) easily results in visual impairment, especially inflicting age-related macular degeneration (AMD) or macular degeneration (MD).
There is NO CURE for AMD and MD today!
Emphasing in prevention of ACTUAL artificial harmful blue-light from 420nm ~ 460nm generated from most electronic LCD/LED monitors, Not like other general/similar products described in the wavelength of 380nm~480nm with average ONLY! There are less critical harmful blue-light source can be found in 380nm ~ 400nm.
Prevent eye diseases, such as early development of Myopia (Children), Presbyopia (Blurry vision), Computer Vision Syndrome (CVS), Dry Eye, Red eye syndrome, and Eye fatigue;
Significantly reduce your risk to severe eye diseases that lead to total blindness, eg Cataract and Age-Related Macular Degeneration (AMD);
Reduction in harmful blue-light exposure will enhance sleeping quality and increase work productivity; and
Maintain high quality images. The majority of color is well preserved for your visual sensation, intensity of images are also enhanced.