Viscare Advanced Computer/Gamer Glasses with US Patented Melanin lenses Melanin is the natural pigment in your hair and eyes to darken it and protect it from the sun. It is in the back of the lens in everyone to protect the eye from blue light. The patent has developed state-of-the-art eye care technology incorporating melanin in protective eyewear. Melanin as the light-filtering component in lenses provides glare reduction and protection from harmful blue light to the eye. Why MELANIN lenses are better than normal filtering coating lenses?•MELANIN lenses offer the better enhancement of contrast and visual performance while minimizing screen glare and diminishing the harshest parts of the color spectrum. Normal coating lenses compromise the clarity and vividity of color of vision. •Melanin lenses function NEVER degrades because the synthetic melanin is fused with the lense material; normal coating lenses function degrades when the coating scratched or ground away. •Melanin lenses let more unharmful light through so offer vision more brighter and have no glare; normal coating lenes reflect more light so the vision is darker and reflect more lights from the screen cauing glare. Viscare MELANIN lense have passed ANSI Z80.3.2008 test as other much expensive brands have. For watching TV/cell phone/tablets/monitor, around 60% of blue light blocking is the best rate of minimizing screen glare and diminishing the harshest parts of the color spectrum while not compromising brightness and color vividity visual performance. As shown in the test report, Tsb means the rate of blue light penetration. Tsb 42.14% means 42.14% of blue light emissing from the light resorce penetrating the lenses and 57.86% of blue light blocked by the lenses.