Resumen de True colours
Swain provides details on how color blind people are finally seeing the full spectrum by using a pair of sunglasses by Enchroma. Glass scientist Don McPherson co-founded Enchroma in 2010, after the serendipitous discovery that lenses he was developing to protect surgeons' eyes from medical lasers also enhanced color perception in those who were color blind. The reason was that colored filters can make certain hues pop out against the background. McPherson says it is the ability of Enchroma's glasses to bring relevant colors to the fore without diminishing others that stands them apart, making them worthy of their hefty price tag. They do this by filtering out the light wavelengths that trigger both red and green cones, essentially removing the colors that easily muddles over the eyes
