The number one rule that you must follow when you have a set of contact lenses is that you must take care of improperly. For most varieties of lenses you will need to clean them properly and regularly — using the recommended cleansing solutions. In most cases, after rinsing them you will need to store them in the solution when you are not wearing them. Improperly cleaning your lenses can result in the dangerous buildup of proteins as a result of coming into contact with the surface of your eyes. Proper cleaning will remove these contaminants, and reduce the chances are of developing an eye infection.