How much time do you spend on the computer? If you’re like most people, this can be a significant amount of time. A lot of people have a job where they use a computer for several hours a day. If you are going to school, you can end up using the computer for several hours a day. If you entertain yourself by playing video games, you can end up staring at a computer screen for even more time, and in a way that requires extended focus. Though all of these things might sound necessary or fun, it can take a toll on your eye health.