What are some reasons to use non-prescription colored contact lenses?

Reasons to use non-prescription colored contact lenses include enhancing the appearance of the eyes or changing the eye color for fashion or a costume. Even if the wearer has perfect vision, a prescription from an eye doctor is required to get colored contact lenses, to ensure the lenses fit properly.

Enhancement tint contact lenses are a lighter or darker tint than the wearer's eyes, but the same color. They make the wearer's eye color more noticeable. Color tint contacts change the eye color. Some fashion contacts also have designs for the eye instead of just different colors.

Contact lenses that aren't the right fit for the wearer can damage or infect the eyes. In some cases, this leads to vision loss. It is illegal to sell contact lenses without a prescription, as of 2015.