The Golden Ratio is widely believed to be a natural principle related to the laws of equilibrium. Many great artists have proportioned their works according to the Golden Ratio, as it is believed to be aesthetically pleasing. Hence, a ‘perfect’ face would display Golden Ratio proportions such as these: Distance from Top-of-the-head to Chin divided by Width-of-head equals .phi.; Length-of-Lips divided by Width-of-Nose equals .phi.; Outside distance between Eyes divided by Length-of-Lips equals .phi.; etc.
It follows that, on a ‘perfect’ face, the high point (HP) of the eyebrow would divide the eyebrow arch at precisely the Golden Ratio point between the starting point of the eyebrow (SP) and the ending point of the eyebrow (EP) (SP-HP divided by HP-EP=.phi.) [.phi. = 1.618033989]