IPD; It is said that the normal interpupillary distance (distance between the centers of the pupils)
 
divided vertically by the distance above the lips
 
is 1 (0.5 margin of error). There is a way to compare it with the Lower upper thirds , where if it is lower it is long and if it is higher it is short.
 
It is not a very important standard and the standard that gives the feeling of long is this ratio.
 
I haven't seen it yet.. haha ​​I have a picture taken at the plastic surgery clinic.