How to Measure Your Pupillary Distance (PD) at Home

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When purchasing prescription glasses online, knowing your Pupillary Distance (PD) becomes essential. Unfortunately, many opticians might overlook giving you this crucial metric, but don’t stress! You can measure your PD easily and accurately right in the comfort of your home.

The Significance of Pupillary Distance (PD)

Pupillary Distance is the space, measured in millimeters, between the centers of your pupils. When you’re shopping for new prescription glasses online, having a correct PD measurement ensures that the optical center of your lens aligns perfectly with your pupil. A misplaced optical center can lead to blurry vision, fatigue, and discomfort.

Unveiling Dual Pupillary Distance

While most of us have symmetrical eyes, some might notice slight variations. In such cases, a Dual Pupillary Distance measurement is recommended. Instead of a single measurement from one pupil to the other, Dual PD measures the distance from the center of your nose to the center of each eye. This precise method ensures that the lens’s optical center is accurately positioned for both eyes.

5 Effective Ways to Measure Your PD at Home

  1. Measuring PD Online: Tools like the one offered by Warby Parker are a boon. With a card that has a magnetic strip and a computer webcam, you’re good to go. GlassesOn is another brilliant app to consider if you want to measure your PD seamlessly.
  2. Using Your Smartphone: If you lack a millimeter ruler, use your smartphone as an alternative. Begin by opening our PD guide on your device. Scale your on-screen ruler using a credit card or penny. Once scaled, use a mirror and the steps provided to measure your PD accurately. For iPhone users, the EyeMeasure app simplifies the process further.
  3. Traditional Ruler Method: With a ruler that measures in millimeters, stand 8-10 inches from a mirror, align the ruler’s zero with your right pupil, and measure the distance to your left pupil. Asking someone to assist can make the process smoother.
  4. Existing Glasses: If you have an old pair, mark the center of your pupils on the lenses. Then, measure the distance between these marks. Although it might not be as precise as other methods, it provides a ballpark figure.
  5. Contact Your Optician: This is more of a reminder than a method. If you’ve ever purchased glasses from an optician, they have your PD. Give them a call and ask for it. In many states, opticians are required by law to provide this information upon request.

Understanding Average PD Measurements

Adults generally have a PD between 52-72mm. Men usually fall between 56-72mm and women between 52-64mm. Children’s PD can vary considerably but often ranges from 40-54mm.

Implications of Incorrect PD Measurements

An inaccurate PD can cause significant discomfort, from eye strain to blurry vision. For the best visual experience, ensure your PD is on point.


With the methods provided, measuring your Pupillary Distance at home becomes a straightforward task. Once you have your accurate PD, why not explore our exclusive VisionVogue Single Vision eyewear? Made with precision and keeping the contemporary user in mind, VisionVogue promises clarity and style in every frame. Dive in today and elevate your vision!

Remember, a clear view begins with accurate measurements. Know your PD, and let your eyes enjoy the comfort they truly deserve.

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Maria Hopkins

Maria Hopkins

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