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A comment on Measuring Your Own Pupillary Distance. Parent comment
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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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.