When you are staring at a computer for long periods of time you blink less often. This can lead to eye fatigue. To combat it, remember the phrase 20-20-20. This means Every twenty minutes give your eyes a break by looking into the distance twenty feet away, for twenty seconds. It will refresh your eyes and prevent eye strain.
Keep in mind that having eye issues may be inevitable for some. Many eye conditions are hereditary. You can take great care of your eyes and still have major issues. If you have family member with eye problems, you may want to talk to them about which issues run in the family. You can bring up these conditions to your optometrist so that they can watch for the early signs.