It doesn’t matter if you’re on the market for corrective contact lenses or if you’re out to buy colored contacts — the same law applies to both: you will need a prescription. Cosmetic contacts, of which colored contacts are a common example, are manufactured in various shapes and sizes. As such, you can’t just go ahead and purchase a pair and expect it to fit your eyes right. To make sure that you get the contact lens that would safely match your eyes, you need to be fitted professionally and then get the corresponding prescription.
Researching different available brands and designs of colored contacts is also imperative. You should be aware which brands have pigments that easily rub off, which could lead to bacterial infection, and stay away from them.
If you are not the type who knows how to care for contact lenses and are just looking to wear colored contacts as part of a costume for a certain occasion, like Halloween, it would be best for you to just go with disposable cosmetic lens. Simply throw the contacts away after use and spare yourself from the worries of cleaning and disinfecting.
