Not the poster but I see no reason to doubt the claim. A while back when dealing with glasses that didn't come out right my eye doc wanted to check the PD in an attempt to figure out why my glasses were bothering me (I'm incredibly sensitive on my computer pair, I can't tolerate anything that isn't absolutely spot on)--and she walked over to the optical center to borrow their PD measurer. She didn't have one because it's not something she normally needs.