Glasses Frames and Lenses - How to use a PD ruler

http://www.glassesframesandlenses.com

How to measure your PD - Pupillary Distance.

This short film from Glasses Frames and Lenses shows you the most effective way to measure your PD - Pupillary Distance.

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• #pd_measurement
• #pupillary_distance
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• #measure_pupillary_measurements