The rules for safe contact lens use are to always for users to wash and dry their hands before touching them, minimize the lenses' contact with water, clean or wet them only with fresh solution and not to wear them longer than they're intended to be worn. It's also important for contact lens wearers to use the "rub and rinse" method to clean them, which is done by rubbing the lenses with contact solution, then storing them in fresh contact solution in a sterile container. Contact lens wearers should never use expired solution or any liquid that is not contact solution to clean contacts, and they should make sure that the lenses don't have contact with water. Wearing contact lenses while swimming, while showering or while in a hot tub can lead to an eye infection that can cause eye ulcers and even blindness. Types of contacts differ, so contact lens users should always follow their eye care professionals' directions.
More facts about safe contact lens use: