[JustSomeNobody]

> My ophthalmologist claimed he didn’t have the equipment to add PD to his prescription.

It's called a PD Ruler and it's literally just a mm ruler. Bald-faced liar indeed.

[LorenPechtel]

They usually have a machine that reads it a bit more accurately.

[selcuka]

Correction: "the equipment to add PD to his prescription" is called a pen.