look, I was born with cataracts, at 16 years old I had to get them removed, which means they remove my natural human lense and replace it with an artificial one. then years later, I had to get a laser procedure done because my eyes fogged up. trust me it wasn't a pleasant experience.. don't mess with your eyes, besides what colour are they?
It's like getting a tattoo, and WAY more risky. Wait a few more years, see what kind of risks come out in the media, and at that point if you're in a few thousand on the same color of contacts, then you'll know that's really the color you want to change too. Really hate to play the age card, but you're still young, and you may find this to be part of a phase.
My parents had my ears pierced when I was 2, and they required me to keep earrings in all the time. I'm allergic to 90% of earring posts on the market, and I can only wear surgical steel or gold. I hate gold, and I haven't worn earrings since I was 21, but I'll have the holes forever, because I kept jewelry in them too long for them to close over.
hey even i hate my eye color but I won't change it because its a boring brown, I've always enjoyed a nice crystal blue eye color but that doesn't mean I'll get it. Dont mess with your eyes - especially if you were born with a specific color, you were meant to have brown eyes.