Don't stare at the computer screen too long. You can end up with issues like eyestrain, blurriness, headaches, dry eyes, and decreased distance focus. Try taking breaks every 20 minutes or so by looking 20 feet away from the screen for about 20 seconds. This can help you rest and re-focus your eyes to reduce or prevent those eye issues.
If you suffer from dry eyes, this can be painful. You may want to try a high quality saline drop. In addition, little things, such as blinking, can increase tear production. Try to avoid using products that are filled with chemicals. Over time, these may actually worsen your dry eyes.
Position your computer monitor at the ideal distance from your eyes. If your monitor is positioned too high or too close, it can cause you eye strain. Eyes that are stressed are prone to develop more problems down the road. The computer screen should be positioned at eye level and at least at an arm's distance.
Rest your eyes. If you spend long periods of time looking at your computer or focusing on one thing, it can be easy to forget to blink. This causes your eyes to fatigue. Reduce eye strain by looking away every 20 minutes for about twenty seconds. This can help your eyes.