Colored contacts require a prescription in order to achieve the desired look while also protecting your eyes. Many lenses have different levels of opacity, and those with higher levels can cause vision problems if not fitted properly. Furthermore, contacts can irritate or damage the eye if not used properly or stored cleanly. When purchasing colored contact lenses, it is important to consult a doctor or optometrist to ensure you are obtaining the correct lens for your eyes and vision. A prescription is also necessary to ensure proper fitting, as contact lenses need to fit tightly against the eye with no gap in order for them to work correctly. In addition, a professional can help advise on which contacts will be best suited to your particular vision needs. Proper care and maintenance of contacts are also necessary to avoid eye infections or other issues, so it is important to consult a professional before beginning use. By getting a prescription for colored contacts, you are ensuring that your vision and safety are not compromised.