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Re:Measuring Your Own Pupillary Distance by phonon on Saturday September 02, 2017 @03:06PM (#15157661)
It's a mistake :-)

http://www.daniellivingston.com/2012/06/measuring-your-own-p...

AnonymousSeptember 12, 2013 at 1:02 PM It measured me from a 61mm to 65mm PD. So call it accurate within ±4mm.

Uh, no... This is ±2mm (around a center value of 63)

Daniel LivingstonSeptember 12, 2013 at 6:10 PM Oh yes that's true, I meant to explain it is inaccurate by up to 4mm.

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