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Image of a person's eyes with instructional overlay for calculating PD from Dresden Vision Canada.
  1. Online Pupillary Distance Measurement Tool

What is Pupillary Distance?

Pupillary distance (PD) is the distance between your pupils, measured in millimetres, and is essential for accurately positioning your eyeglass lenses. When PD is correct, you get clear and comfortable vision. If it’s wrong, your glasses may not align properly with your eyes, which can lead to eye strain, headaches, and reduced visual clarity. Accurately measuring your PD ensures the best visual experience.

Hand holding a phone running the Dresden Vision app for virtual measurement in Australia.

Online Pupillary Distance
Measurement Tool

Our free online pupillary distance measurement tool makes it easy to measure your PD in minutes.

Enter your email to access the PD tool.
Steps to measure pupillary distance online with the free Dresden Vision Canada tool shown by a woman using a phone.

How to measure pupillary distance online with our free tool, follow these simple steps

Pupillary distance (PD) is the distance between your pupils, measured in millimetres, and is essential for accurately positioning your eyeglass lenses. When PD is correct, you get clear and comfortable vision. If it's wrong, your glasses may not align properly with your eyes, which can lead to eye strain, headaches, and reduced visual clarity. Accurately measuring your PD ensures the best visual experience.

To use our tool, follow these simple steps

1

Click on the "Measure your PD button" to the left.

2

Place your phone or computer screen about an arms length away from your face.

3

Face a bright light source, with no light coming from behind you. Remove your glasses before you begin.

4

Align your face within the green guideline and hold still for 3 seconds. Receive your PD measurement and order your glasses.

Patient having their traditional pupillary distance measurement checked by a professional at Dresden Vision Canada.

Traditional method of measuring pupillary distance

Traditionally, pupillary distance is measured by an optometrist or ophthalmologist using a pupillometer. A pupillometer is a device that measures the distance between the pupils. The process of measuring pupillary distance is painless and takes only a few minutes to complete.

During the measurement, you'll be asked to look straight ahead while the optometrist positions the pupillometer in front of your eyes. The device measures the distance between your pupils accurately, ensuring your prescription glasses will be properly aligned for optimal vision clarity and comfort.

Explore the advantages of the Dresden Vision Canada online pupillary distance measurement feature on a smartphone.

Advantages of using our online pupillary distance measurement tool

There are several advantages to using our online pupillary distance measurement tool. Firstly, our tool is completely free to use. No need to visit an optometrist just to measure your PD, and no need to spend money on complicated measuring tools. All you need is your computer, and our online measurement tool does the rest. Secondly, our tool is incredibly easy to use. Even if you're not tech-savvy, you can have your PD measured in a matter of minutes.

Anyone can use our online tool – all you need is a computer or a smartphone with a camera. Thirdly, our tool is accurate. Our team of experts has spent countless hours developing and refining our online measurement tool to ensure that it is as accurate as possible. You can confidently use our online tool to measure your PD, knowing that you're getting a precise and reliable result.

Learn your PD measure with ruler

Measure your PD yourself by following these steps:

1

Grab a small ruler in one hand, and have your pencil and paper handy.

Dresden Vision Canada instruction step one prepare the small ruler and paper to measure pupillary distance.
2

Close your left eye and align the "0" over the centre of your right pupil.

Image showing a woman closing one eye to align the ruler zero mark with her pupil for Dresden Vision Canada.
3

Measure the distance from your right to your left pupil.

Third step in the guide measuring the distance between both pupils with a ruler for Dresden Vision Canada.
4

The number that lines up directly over your left pupil is your PD (an average PD for an adult ranges between 58-65).

Last step reading the PD pupillary distance measurement from the ruler for Dresden Vision Canada frame order.

Need a new prescription or help with PD measurement?

Whether you require a new prescription or assistance with PD measurement, we're here to help.

Book an appointment or visit our stores
Call us at (647) 424 4288
Email us at hello@ca.dresden.vision
Woman in a lab coat encouraging customers to book an optometrist appointment with Dresden Vision Canada.

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