I want to order glasses online with my prescription. What's the difference between single PD and dual PD (pupillary distance)? - Quora
![How to Measure Pupillary Distance (PD)? | Rx-Able | We use Essilor prescription lenses, the best brand for the sharpest vision. How to Measure Pupillary Distance (PD)? | Rx-Able | We use Essilor prescription lenses, the best brand for the sharpest vision.](https://cdn.shopify.com/s/files/1/0068/2154/3988/files/RX-ABLE-PD-Instructions.png?4330)
How to Measure Pupillary Distance (PD)? | Rx-Able | We use Essilor prescription lenses, the best brand for the sharpest vision.
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