Please consult our return policy for further details. If there's any issues or you're not happy with the lenses/frame or we'll remake the lenses and/or allow you to choose another frame. Taking your PD is very easy, however if there are any issues with us manufacturing your prescription lenses please don't worry because we have an 100% Guarantee for our prescription lenses orders. Repeat the procedure several times to make sure you have a consistent measurement.Read the millimeter measurement corresponding to the center of your right pupil.Open your right eye and close the left, but do not move your face or the ruler.Look over the top of the ruler and align the zero mark in the center of your left pupil.Place a ruler flat against the mirror and align it horizontally with the millimeter scale pointing up.Close your right eye and look only with your left eye.Stand with you face about 20 cm (8 inches) from the mirror.Measure yourself in front of a mirror: you need a mirror and a MM ruler.

Take the PD multiple times and even have multiple helpers then get the average for added accuracy.

While taking the PD measurement make sure the patient keeps looking straight ahead.

The distance between the middle of each pupil is the PD.

Use the image to the right as an example.

Keep the ruler straight and if you're using the above printable ruler, make sure you keep paper straight as possible.

Hold the ruler's '0' value to the left middle pupil and measure straight across to the middle of the other pupil.

Ask your helper to stand arms length away.

Have a helper use a mm ruler to assist you with this measurement.

Measure the distance between the dots in millimeters.

Have your helper stand in front of you and mark a dot in the center of each pupil on your glasses.

Have a helper use a NON-PERMANENT marker and a MM ruler to take this measurement.

Call to a local optical store and pay a small fee for an optician to take your PD measurement.

Ask your Eye Doctor, Optometrist, or Optician for your PD measurement.

The simplest method is to go to your Eye Doctor or Optometrist for an eye exam.

If you have any questions along the way please do not hesitate to contact us or call us at 1-80. There are a five different ways of getting your PD and we have listed them in order of the best ways to get it. Once you become an adult your PD does not change unlike a child or teenager. Your PD is not going to change if you're wearing glasses, in fact if you have your PD from a previous prescription and you're an adult you can use that PD. A patient does not have to be wearing the frame for the PD to be correct because the PD is the distance from the middle of one pupil to the middle of the other pupil. A local doctor or optical store may tell you that but that is not true. However, the reason why a doctor or a local optical shop would not give you your PD is because they want you to pay their inflated prices for frames and prescription lenses.ĭoes My PD Have to be Taken With My Frame? As for obtaining your PD measurement, eye doctors are generally not legally obligated to give you this as it's technically not part of the eye test itself, but something measured for the purpose of creating eyeglasses frames. Measured in millimeters, PD is important as it helps the laboratory technician to accurately create your eyeglasses frames by lining up your pupil with the center of the lens. Pupillary Distance is the distance between the center of one pupil (the central black dot of your eye) to the center of the other pupil.

Does pupil distance change