It is ok for you to wear colored contacts for making your eye look better. But as we all know, beauty costs. You have to do many things when you wear colored contacts. First, you must pay attention to the sanitation of colored contacts. Every time before you wear them, you must make sure that your hands are clean enough. And every day you must change lotion to clean them twice. Second you mustn't wear them for over 8 hours. After 8 hours, your eyes may be dry and feel uncomfortable. Third, you should change a new pair of colored contacts every half a year. You can go to official hospital to get colored contacts with zero degree. If you feel your eyes sick when you wear them on, ask a doctor for help.