Korean society puts a lot of emphasis on looks. Even the guys go for nose and eye jobs and wear make-up to work every day. I know a Korean guy who works as a sales rep here - he puts on lipstick and eyeliner every day when he go to see clients, which is kind of odd in our society.
Every girl gets an eye job for her 18th birthday present from her parents, unless she's born a natural beauty. That's what my Korean guide tells me.