How do I find my Pupillary Distance (PD) if it’s not on my prescription?Updated 2 months ago

Ask your optometrist or ophthalmologist — they are legally required to provide your PD upon request in most U.S. states. Alternatively, you can use a printed PD ruler and a mirror to measure it yourself. Many online optical retailers (such as Zenni and EyeBuyDirect) offer digital PD measurement tools using your phone camera and a standard credit card for scale.