Good eyelashes widen and brighten your eyes. Long, defined eyelashes can make a world of difference for your face by opening your eyes and creating a refreshed, bright appearance. This is because dark eyelashes emphasise the white of your eyes (the sclera) and the dark ring around your iris (the limbal ring). Long eyelashes also emphasise movement around your eyes every time you blink and gaze, which will hold the attention of the viewer.