Her father's older brother also has blue eyes and had to deal with been discriminated against and stigmatized because of the color of his eyes growing up. In fact he learned to walk with his head facing down so as not to scare people away.
Kaila and her uncle are not the only ones with this special gift. Other members of their family also have blue eyes or blue patches in their eyes.
I guess nothing to be scared of about her eyes; it's nature.