Measure your PD

Get your PD at home, free of charge, free of hassle.

All you need is a PC/phone with a front camera, a standard magnetic card, and 2 to 3 minutes. Once you have completed the 4 steps, please note down your PD and either update your prescription in your account or send it to us through E-mail or wechat: NextPair2020.
Start measuring

I am over 18 years old. This is an FDA listed Class 1 Exempt Medical Device. I agree to the terms and conditions, this PD tool does not provide medical advice.

PD Reader

While you can get your prescription easily from an eye test, 85% of US prescriptions are missing the pupillary distance (PD information). Therefore, this tool is designed to complement your prescription and allow you to measure your PD easily from the comfort of your couch.

Your pupillary distance is the distance between your left and right pupil. This information is crucial to fit your lens into your frame.

This tool is offered free of charge by Next Pair, just to make your life a bit easier. 

Usually 2-3 minutes, and that’s including watching our video guide.

You will need a smartphone or PC that has a front camera, and a standard size magnetic card. 

This tool has been clinically tested and proven to be as accurate as standard acceptable PD meters, within +/- 1mm.

This tool is designed for individuals aged 18 or over, who do not have eye conditions or illnesses.

This is an FDA listed Class 1 Exempt Medical Device, however this PD tool does not provide medical advice.

The range for this PD reader is 52mm to 75mm, which covers most adult PDs. If you fall out of this range, our results may not be accurate, however feel free to contact our customer service who will be happy to provide you with alternative methods to measure your PD.

Try the following:

-         Position your face 30-40 cm from the screen to work best

-         Keep your face parallel to the camera at eye level

-         Make sure your testing environment is well lit

-         Make your eyes clearly visible with no hair/hand/card obstruction

-         Hold your card at the top corner

-         Place your card sitting above your eyebrows, with the magnetic strip facing down

-         Make the magnetic strip clearly visible

-         Light coloured cards work best!

We require camera permission to perform the scan, and only access the camera for only the duration of the test. Our service is GDPR compliant and fits the ISO 28018 certificate for IT and cloud privacy protection. For more information, please refer to our privacy policy.

First of all, there is no need to use a credit card, any standard magnetic card sized 3.37 inch will do! Any bus/library/membership card will work the same. In addition, the image will not be linked to any personal identifiable information and will be blurred so details cannot be recognised. Our service is GDPR compliant and fits the ISO 28018 certificate for IT and cloud privacy protection. For more information, please refer to our privacy policy.

For desktop web, we support Safari, Chrome and Firefox. For mobile web, we support Safari and Chrome only.