You probably thought screens were a big part of life before. Then, the pandemic hit. The endless Zoom calls, video meetings and Netflix binges can leave some with tired or dry eyes. Blue-light-blocking glasses are marketed as a solution to that very problem — particularly now that we're immersed in screens more than ever. The product claims to minimize how much "blue light" wearers are exposed to. It's one part of the visible light spectrum emitting from digital screens, and it's the supposed culprit behind your ocular woes.
“When they came out, there wasn’t much evidence whether they were actually effective or not,” says Mark Rosenfield, a vision researcher at the SUNY College of Optometry. “Now I think there’s pretty strong evidence that they’re not effective.”
