Details

Model : YGHY 1332
55 mm	18 mm	137 mm

approx 142 mm	50 mm

Measure Pupil Distance (PD)

Pupillary distance (PD) measures the distance between the centers of your pupils. This measurement is used to determine where you look through the lens of your glasses and should be as accurate as possible. The average adult's PD is between 54-74 mm; kids' are between 43-58 mm.

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