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How to Measure Your Pupillary Distance

What is pupillary distance?

Pupillary distance (PD) is the distance between your pupils. Retrieving your pupillary distance is typically done by your eye doctor or specialist, as the measurement is crucial in fitting your prescription glasses to your eyes. To get the clearest vision, the distance between the center of each lens should be the same as your pupillary distance. However, if your prescription doesn’t include your PD, you can easily find out how to measure pupillary distance at home using our simple online tool.

Measure your pupillary distance online

Our free Pupillary Distance app is the best option for online PD measurement. We recommend this measurement since it’s fast, easy, and accurate. All you need for our online tool is a smartphone, or a webcam, and a magnetic strip card. The app has voice instructions that guide you through four quick and easy steps. Head to our website for the steps and see how easy it truly is. 

How to measure your pupillary distance by yourself

If you don’t have access to the tools needed to use our app, you can instead use a ruler and mirror to measure your pupillary distance.

 

Step 1 – Facing a mirror, hold the ruler up to the bridge of your nose. 

Step 2– Close your right eye. While looking in the mirror, ensure the ruler’s zero is aligned with your left pupil.

Step 3 – Keep the ruler still. Look straight ahead, close your left eye and open your right eye.

Step 4 – Read the number aligned with your right pupil’s center or any other point seen below. This number is your pupillary distance.

Step 5 – Repeat the process to ensure you get the most accurate result.​​​​

How to measure your pupillary distance with help

Please note that for this test, you’ll need a ruler and a friend.

 

Step 1 – Hold the ruler up to the bridge of your nose.

Step 2 – Have a friend stand roughly an arm’s length away from you.

Step 3 – Close your right eye and ensure the pupillary distance ruler’s zero is aligned with your left pupil. 

Step 4 – Keep the pupillary distance ruler still. Look straight ahead, close your left eye and open your right eye.

Step 5 – Have your friend read the number aligned with the center of your right pupil. This number is your pupillary distance.

Step 6 – Repeat the process to ensure the most accurate result.​​​​ 

Measuring your pupillary distance online or at home is a simple and easy process. It’s always best to do it a few times to ensure you have the most accurate measurement so you can have clear vision with your prescription glasses. If you’re still unsure, read more about our Pupillary Distance app or head to our Optical Center and speak to one of our opticians online today. 

How to Measure Your Pupillary Distance

What is pupillary distance?

Pupillary distance (PD) is the distance between your pupils. Retrieving your pupillary distance is typically done by your eye doctor or specialist, as the measurement is crucial in fitting your prescription glasses to your eyes. To get the clearest vision, the distance between the center of each lens should be the same as your pupillary distance. However, if your prescription doesn’t include your PD, you can easily find out how to measure pupillary distance at home using our simple online tool.

Measure your pupillary distance online

Our free Pupillary Distance app is the best option for online PD measurement. We recommend this measurement since it’s fast, easy, and accurate. All you need for our online tool is a smartphone, or a webcam, and a magnetic strip card. The app has voice instructions that guide you through four quick and easy steps. Head to our website for the steps and see how easy it truly is. 

How to measure your pupillary distance by yourself

If you don’t have access to the tools needed to use our app, you can instead use a ruler and mirror to measure your pupillary distance.

 

Step 1 – Facing a mirror, hold the ruler up to the bridge of your nose. 

Step 2 – Close your right eye. While looking in the mirror, ensure the ruler’s zero is aligned with your left pupil.

Step 3 – Keep the ruler still. Look straight ahead, close your left eye and open your right eye.

Step 4 – Read the number aligned with your right pupil’s center or any other point seen below. This number is your pupillary distance.

Step 5 – Repeat the process to ensure you get the most accurate result.​​​​

How to measure your pupillary distance with help

Please note that for this test, you’ll need a ruler and a friend.

 

Step 1 – Hold the ruler up to the bridge of your nose.

Step 2 – Have a friend stand roughly an arm’s length away from you.

Step 3 – Close your right eye and ensure the pupillary distance ruler’s zero is aligned with your left pupil. 

Step 4 – Keep the pupillary distance ruler still. Look straight ahead, close your left eye and open your right eye.

Step 5 – Have your friend read the number aligned with the center of your right pupil. This number is your pupillary distance.

Step 6 – Repeat the process to ensure the most accurate result.​​​​ 

Measuring your pupillary distance online or at home is a simple and easy process. It’s always best to do it a few times to ensure you have the most accurate measurement so you can have clear vision with your prescription glasses. If you’re still unsure, read more about our Pupillary Distance app or head to our Optical Center and speak to one of our opticians online today. 

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