Learn more› By Kaitlyn Wells and Zoe Vanderweide If you believe the hype, blue-light blocking glasses will prevent headaches, decrease eyestrain, and help you sleep like a baby. But do they work?

"Disconcerting blue lines on SaylorTracker.com," Saylor wrote to his 3.9 million followers on X. The post, which has become somewhat of a regular Sunday ritual, caused a bevy of responses from ...