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.
Take proper care of your contact lenses. Anytime you put in or take out your contact lenses, make sure that you have thoroughly washed your hands. Also, replace your lenses as instructed and disinfect them like you should. If not properly taken care of, contact lenses can cause you a lot of grief.
Try to always wear sunglasses if you are going to be out in the sun. Having your eyes exposed to too much ultraviolet makes you more susceptible to getting macular degeneration and cataracts. Make sure you choose sunglasses that block from 99% to 100% of the UVB and UVA rays.