Pupillary Distance (PD) or interpupillary distance is the distance between the centers of the pupils in each eye.

How do I measure my Pupillary Distance (PD) on my own?


  • You may use the industry standard, which is to measure in millimeters.

  • This measurement is needed in order to make your prescription glasses.

Use a Ruler in Milimeters

  • Measure your PD by Yourself:

  • Look in the mirror while wearing glasses.

  • Draw dots on the lenses where your pupils are (using a non-permanent magic marker or highlighter)

  • Take the glasses off and measure the distance between the dots.


If you are over 18 years old you may purchase a VISION CHECK MACHINE from the following web site:


  • Discover your EyeGlass Numbers: Vision correction powers provided in the same format as your traditional prescription.

  • Includes PDCheck Glasses that accurately captures your pupillary distance to the mm for perfect-fitting glasses.


Another simple Method is to:

  • You may be able to request help from a friend:

    • Place a millimeter ruler on the bridge of your nose.

    • Have a friend face you about arms length away.

    • Have your friend measure the distance between the center of your pupils (the black dots in the middle of your eyes).

Your Optician or Optometrist may be able to give you this measurement after a visit with him or her:

  • Optometrist or Optician:

    • If you ask your doctor, most eye doctors and/or opticians will take the measurement for you in exchange for a very small service fee.

  • Example Guideline:

    • Most Adults measure between 55mm -65mm.

    • Most Children measure between 42mm – 54mm.

Taking your PDMeasurement is really simple !

Your are now ready to ORDER your EYEGLASSES with us

Please Make Sure to Include your PD Measurement with your order !

Please Note: A Valid Prescription from an Optometrist or an Ophthalmologist is Required.

A valid prescription with PD Measurement is required to order your new prescription glasses.