50 40 30 20 10 0 mm 45 35 25 15 5 10 20 30 40 50 mm 5 15 25 35 45 *Not to scale 50 40 30 20 10 0 mm 45 35 25 15 5 10 20 30 40 50 mm 5 15 25 35 45 26mm That measured distance is your PD measurement! Repeat these steps a few mes to ensure you have measured as accurately as possible. Before you start: Print this page without scaling. Verify the correct ruler scaling with the credit card guide below. STANDARD CREDIT CARD SIZE - USE TO SCALE FOR PRINTOUT OR IF USING SMARTPHONE HOW TO MEASURE YOUR DUAL PUPILLARY DISTANCE (PD) AT HOME Fold Here Use this side with a friend 50 40 30 20 10 0 mm 45 35 25 15 5 50 40 30 20 10 0 mm 45 35 25 15 5 10 20 30 40 50 mm 5 15 25 35 45 10 20 30 40 50 mm 5 15 25 35 45 Fold Here Find a ruler that measures in millimeters (mm) both leſt and right, or use the one provided below. Stand 8-10 inches away from a mirror, looking straight ahead with the ruler parallel above your eyes (Use reversed ruler if using a mirror by yourself). DUAL PD: 55mm 8-10 inches Line up the zero (0) on the ruler with the center of your nose. Close and open your leſt eye to ensure that the ruler is lined up perfectly with the center of your leſt pupil. This is your leſt PD measurement. 50 40 30 20 10 0 mm 45 35 25 15 5 10 20 30 40 50 mm 5 15 25 35 45 29mm 29mm Line up the zero (0) on the ruler with the center of your nose. Close and open your right eye to ensure that the ruler is lined up perfectly with the center of your right pupil. This is your right PD measurement. 26mm