Strain on the eyes and blue light, iirc, suppresses a hormone related to sleep. Been wearing a pair for the past two years after a coworker recommended them after I mentioned my eyes always feel super strained by the end of the day and have trouble sleeping. They really do make a huge difference.

Before, my eyes were super heavy and aching by the end of the day, and now they feel as though only an hour of screen time has passed. Thing is if I take them off while working/looking at any screen without a blue light filter, they start aching within 10 minutes :/