Colored Contacts

do they effect your vision?
also do they work on brown eyes?

They don't affect your vision. The colored iris sits around your pupil so you can see fine.
They work on any color I'd imagine.

http://www.honeycolor.com ?
That's for girls/women. I dunno about men, you'd probably have to go with an American brand for that, but it's a good example.

ODDLY ENOUGH, that company is based in Germany...but its' main target is Asians because it makes their eyes look fuller.