Determining Your PD (pupillary distance)
Your eyeglasses prescription may or may not indicate the PD measurement, if the PD is not indicated use these steps to obtain your PD information. Your PD is used to accurately place your lenses into your frames.
1. Call your eye care professional and ask for your PD measurement. If you have obtained glasses there in the past, that would be on record.
2. Stop by an eye care professional and have your PD measured.
3. Measure PD yourself or with help of a friend.
Use a millimeter ruler to measure from the center to center of each eye. Measure a few times to be accurate.
By Dr. William Becker