Screens such as computers, iPads, and smartphones emit blue light, which may irritate or damage your eyes. Throughout the day, our eyes are exposed to a significant amount of blue light---from the computers at work and the constant use of digital devices at home. While there is no evidence that blue light damages the eyes, issues like eye dryness are linked to blue light. If you suffer from chronic dry eye, it’s a good idea to start limiting your screen time to see if that makes a difference to your eyes.