Pupil Distance

Pupil distance

Pupillary distance or PD, this is the measurement between the center of your pupils.
This is very important if you have a strong prescription or are ordering varifocal lenses, it ensures the optical center of the lenses can match your PD for clear results.

Most PDs are between 55mm and 72mm, some people will have smaller or larger, the average PD is 62mm for women and 64mm for men. This is why the average default PD
of 63mm.

If your prescription isn’t very strong, we will be able to use the average PD without any problems, but if your prescription is stronger it is important that this is measured so you
don’t suffer from eye strain, fatigue or headaches.

Do I need an accurate PD?

We will only need an accurate PD if the sphere (SPH) value for either eye is over 5.00, or your cylinder (CYL) value is over 2.50. If you are ordering varifocals we will definitely
need one. Don’t worry, we will contact you to discuss your order if needed.

How can I get my PD?

Your optician may have measured your PD in your eye examination, but they don’t always record it on your prescription. Some opticians will be happy to let you know your pupillary distance, others may refuse or charge you for it.

If they won’t supply your PD measurement it’s not accurate enough to measure it yourself, or someone who isn’t trained to do it. Don’t worry, it’s quite easy to provide this
information.

How do I find out my pupillary distance?

We can help you do it yourself at home – all you need is a smartphone with a camera, and a card from your wallet, (like a store card, this is for scale purposes) and someone
to take the picture.

1. Hold your card flat against your forehead just above your eyebrows, with both edges
visible and the back facing the camera.
2. Then have your picture taken, make sure you are looking directly into the camera from
around 4ft away with both eyes open. It should look like in the picture below:

When you’re done, email it to us along with your order number and our team will work out the correct ratio based on the photograph you sent.
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