In our practice, PD measurement is performed by our opticians using digital devices and provided for a fee to the patient.  This is not a medical procedure but is a critical measurement for proper fitting and manufacture of prescription eyeglasses. There can be several different "PD" measurements depending on what the particular eyeglasses are prescribed for, eg Progressive Multifocals, Computer glasses, Reading glasses, Driving glasses, Shooting glasses, etc..  I am very strongly against this proposed requirement.