Your Eyes May Be Tired or Dry
Have you been staring at a screen or page or focusing on a task for a long time? People tend to blink less often when they're concentrating like that. And each time you blink, you're spreading tears across the surface of your eye to keep it lubricated, clean, and refreshed. You may need to remind yourself to blink more often, take breaks, and look around to prevent vision fatigue. It can also be helpful to use artificial tears during the day to help keep your eyes lubricated.
You Have Diabetes
When your blood sugar isn't well-controlled, fluid may seep into the lens of your eye and make it swell. This can happen before you're diagnosed or if you're changing your treatment, like starting insulin. As your glucose level gets back to normal, the lens should, too. People with diabetes are more likely to get retinopathy, or bleeding in the back of your eye, and other eye problems, which your eye doctor will check for at your yearly exam.
