You might feel like you have sand in your eyes, or they might burn or itch. You might be sensitive to light, have blurry vision, or, in some cases, your eyes might water. And you may have a tough time wearing contact lenses.
Your eyes need moisture. This helps them work the way they’re supposed to and keeps them comfortable. Your body normally makes moisture for your eyes, but when you can’t — or it’s not good quality — that can make your eyes hurt and affect your eyesight.