How do I calculate my pupillary distance (PD)?Updated a month ago

Pupillary distance is the measurement (in millimeters) between the centers of your two pupils. It’s an essential value to ensure your lenses are properly centered.

• You may find it on your prescription, if it was provided.

• If it’s not listed, you can measure it yourself by clicking this link.

• You can also ask your optician to measure it for you.