Before you order
Measure your
pupillary distance
Your PD is the distance between the centers of your pupils. You need this number to order custom-fitted loupes. Use one of the free apps below — it takes under two minutes on your phone.
Recommended
The Framery
iOS & Android · Free · FDA registered
Uses magnetic strip for accurate reference
Clinically tested — within ±1mm accuracy
Guided voice instructions, takes 60 seconds
Works on all iOS and Android phones
iPhone X+ only
EyeMeasure
iOS only · Free · TrueDepth camera
Uses 3D TrueDepth camera — no card needed
Accurate to ±0.5mm on supported devices
Instant measurement — no setup required
Requires iPhone X or newer
How to use The Framery
01
Download The Framery from the App Store or Google Play — it's free.
02
Grab any card with a magnetic strip — library card, loyalty card, bank card. You don't need to show the front of the card.
03
Tap "Start PD" and follow the voice instructions. Hold the card with the strip facing down, just above your eyebrows. The app guides you through the whole process.
04
Note your PD number — typically between 54mm and 74mm. Enter it below to save it, then use it when ordering your loupes.
Save your measurement
Once you have your PD from the app, enter it here to save it and copy it easily when ordering.
mm
Your pupillary distance
—mm
Enter this number when ordering your SureOptix loupes. Keep it handy — copy it below.