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Measuring Pupilary Distance (PD)
Single PD

STEP 1
Stand 8” away from a mirror.

STEP 2
Hold a ruler against your eyebrows.

STEP 3
Close your right eye, and align the ruler’s
0mm mark with the middle of your left pupil.

STEP 4
Open your right eye and close your left eye

STEP 5
Find the millimeter line that aligns with
the center of your right pupil.
Dual PD

STEP 1
Stand 8” away from a mirror

STEP 2
Hold a ruler against your eyebrows

STEP 3
Align the ruler’s 0mm mark with the
middle of your nose.

STEP 4
Close your left eye and find the millimeter line that aligns with the center of your right pupil. This is your right PD.

STEP 5
Close your right eye and align the 0 mark with the center of your left eye. Find the millimeter line that aligns with the center of your nose. This is your left PD.
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