Pupillary Distance wikipedia.org Pupillary Distance IPD adjustment PD English English Pupillary distance pupillary distance http://en.wikipedia.org/wiki/Pupillary_distance pupillary distance (PD) pupillary distance (PD) http://en.wikipedia.org/wiki/Pupillary_distance https://en.wikipedia.org/wiki/Pupillary_distance 6 cm https://en.wikipedia.org/wiki/Pupillary_distance interpupillary distance from 41 to 73 mm pupillary distance English https://en.wikipedia.org/wiki/Pupillary_distance PD Pupillary distance - Wikipedia wikipedia.org PD