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Posted on by Alice Zhang
If your doctor did not include your pupillary distance (PD) in the prescription, use one of these two easy methods to determine your PD.
What is Pupillary Distance?
Pupillary distance (PD) measures the space between the pupils of your eyes. Knowing this measurement is important to make sure your eyes match up with the optical center of your lenses, so you can see well with the glasses.
The average adult’s PD is between 54-74; kids' are between 43-54.
How to Measure Your PD?
- Stand 8 inch away from a mirror.
- Hold a ruler against your brow.
- Close your right eye then align the ruler’s 0 mm with the center of your left pupil.
- Look straight then close your left eye and open your right eye.
- The mm line that lines up to the center of your right pupil is your PD.
Check out the graphic below for more information and to learn how your friend can help you measure your PD.
Armed with your PD and prescription, you can shop at Cyxus to find your perfect pair of glasses.
