Here's a screenshot of the character I created for GTA Online. She started off with normal eyes, but while pondering different hairstyles in a barber shop, I found options for contact lenses as well. There's a lot of really cool ones, but I decided to try the solid-black ones for a while.
Fun fact: This is pretty much how I imagined the cybernetic eyes of Jack Hammer, one of the main characters in my novels, look.
I'm kind of at a loss as to why changing a character's eyes would be an option in a barber shop ... but I guess that's one of the things you just have to go along with.