chat

chat

Should I Use a Pupillary Distance App or Ruler?

man user

Blog

man user

EyeQue Team

man user

May 29, 2019

Woman Measuring Pupillary Distance

When you purchase a pair of eyeglasses, the manufacturer needs several measurements to ensure the frames and lenses will properly correct your vision. One of these measurements, pupillary distance, allows the manufacturer to ensure your lenses are centered on your pupils.

What Is Pupillary Distance?

Pupillary distance, also called interpupillary distance or PD, measures the distance between your pupils. You can read more information about pupillary distance in our recent blog post.

What Is the Best Way to Measure Pupillary Distance?

While you can visit an eye doctor to ask them to measure your pupillary distance, many clinics charge a fee to take this simple measurement.

Optometrist Measuring Pupillary Distance

Instead, you can measure the distance on your own at home by using a ruler or a pupillary distance app like PDCheck. We recommend using a pupillary distance app because it will usually provide a more accurate measurement.

How Can I Measure Pupillary Distance With a Ruler?

Here are the steps you can take to measure your PD with a ruler:

  1. Find a friend or family member who can help.
  2. Find a ruler with measurements listed in millimeters—this is the unit of measurement eyeglasses manufacturers will require.
  3. Hold the ruler up to your face, and have your friend measure the distance between your two pupils. Be sure they are looking at the ruler straight on, and not from an angle, and that the ruler is not tilted.

How Can I Use a Pupillary Distance App?

Guarantee an accurate pupillary distance measurement with EyeQue’s PDCheck app:

  1. Order your PDCheck Frames, which have special T-shaped marks to help the app to properly measure distance.
  2. Download the free PDCheck app on your Android or iOS smartphone, and put on your PDCheck Frames.
  3. Use the PDCheck app to take a photo of yourself wearing the frames. Then the app will have you line up T marks on your screen with the T marks on your PDCheck Frames in the photo. You’ll have your results in no time!

 

 

Measure Your Pupillary Distance Accurately In An Instant

PDCheck is a fast, accurate pupillary distance measurement tool that you can use to find your PD in a snap.

BUY NOW

Sign Up for the EyeQue Newsletter

Receive 10% off plus exclusive deals and tips.