I have worked in front of a computer screen for many years so its taken a toll on my eyes. My eyes get so dried out that they get red and itchy. I use Clear Eyes Maximum Redness Relief and it adds the moisture back into my eyes. I've tried other eye drops and they just don't work. I end up using more then i should because it doesn't provide the relief i need. So I keep a bottle in my desk at work to help when my eyes get dry.