There’s a lot to learn about how blue light affects our eyes

In a recent paper published in the journal Scientific Reports, researchers at the University of Toledo have begun to parse the process by which close or prolonged exposure to the 445 nanometer shortwave called “blue light” can trigger irreversible damage in cells. In the lab, when cells were exposed to blue light directly—in theory, mimicking what happens when we stare at our phone or computer screens—the high-intensity waves trigger a chemical reaction in retinal molecules. And so far, all of the research on how real human eyes react to blue light has failed to link screens to permanent damage of any kind.

Source: www.popsci.com