Accuracy
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      1. Fittingbox - Customer Help Center
      2. PD Measurement
      3. Accuracy

      Is PD value accurate?

      The result of PD Measurement is very accurrate and consistant.

      For 7 peoples out of 10  you will reach an accuracy < 1 mm

       

      Repartion of the PD values on uncontroled people study :

      • ±1 mm for 7 measure out of 10
      • ±2 mm for 96% cases

       

      Respecting guidelines give you the best chances to reach the best accuracy possible