Yes they are called circle lenses. The cosplayers for Anna and Elsa are using larger diameter circle lenses, but smaller diameter ones are worn every day by many women. Even though the lenses can change one's eye color, a lot of women opt for circle lenses the same color as their natural iris, as the main purpose of…

That was my guess

X-23. Born as an experiment and tortured only to escape to be forced into prostitution for sadomasochistic patrons. That's a messed up back story.