pupillar distance

[rx sunglasses]

hey, I need to know is whether you decentre lenses according to smb's PD? my worry is that if the centre of the lenses is not in front of my pupils it will be no good for my eyes. Would you please address my query to a person who makes glasses to find out if the distance between the centre of lenses of glasess I'll order will be 57mm - the same as my PD (57cm).