![Headaches & Fatigue: Measure Your Pupillary Distance (PD) - Endmyopia® - The Reduced Lens Method™: Improve Eyesight Naturally Headaches & Fatigue: Measure Your Pupillary Distance (PD) - Endmyopia® - The Reduced Lens Method™: Improve Eyesight Naturally](https://endmyopia.org/wp-content/uploads/2015/10/measuring-pupillary-distance.jpg)
Headaches & Fatigue: Measure Your Pupillary Distance (PD) - Endmyopia® - The Reduced Lens Method™: Improve Eyesight Naturally
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I want to order glasses online with my prescription. What's the difference between single PD and dual PD (pupillary distance)? - Quora
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