Apps
Apps
PDCheckAR
Use the camera on your phone to measure your PD with this free App. Download | Learn More
MyReaderNumber
Get your reader numbers with your mobile phone with this free app. Download | Learn More
Don't Have IOS? No Problem
Measure Your Own PD
Don't Have IOS? No Problem
Measure Your Own PD
8 Inches of Space
Stand about 8" away from a mirror. Make sure you have good lighting so that you can clearly see your beautiful eyes.
Grab Your Ruler
Look straight ahead into the mirror & place the ruler over the bridge of your nose. If you have trouble, ask a friend to help.
Let's Measure
Starting with the right eye, line up the zero end of the ruler at your pupil; measure the distance from your right to your left pupil.
Congratulations!
The millimeter number that lines up with your left pupil is the measurement you want to use.
Tools You Will Need
- Mirror - So you can admire yourself.
- Ruler - One that has millimeters.
- Pencil & Paper - So you can write down your PD.
- Maybe a friend to help.
PDCheckAR
PDCheckAR
PDCheckAR
Mobile PD App
PDCheckAR
- Measures your far pupillary distance, including your left and right pupillary distance, for distance viewing
- Measures your near pupillary distance for near viewing
- No tape measure, credit card, or other objects required
- Works with all iPhones that have Face ID capabilities
- Allows you to share your results via email
MyReadersNumber
Mobile Reader App
MyReadersNumber
Mobile Reader App
MyReaderNumber
- Easy to use — Snap two selfies within the app and get instant results — takes about one minute!
- Personalized results — Customized based on your age and device usage preference; good for smartphone, reading, and computer measurements
- Accurate — Developed using tried-and-tested optometry principles
- Innovative — Patent-pending, developed by EyeQue, the leader in at-home vision tests
- Educational— Includes eyecare tips and insights like the best ways to shop for new eyewear
- Affordable — One-time fee of $2.99, and the app can be shared with others using Guest mode
F.A.Q
Frequently Asked Questions
PD, or Pupillary Distance, is simply the distance from the center of your pupils. It is measured in millimeters from the center of your right eye to the center of your left eye.
This measurement is important to ensure that your prescription is centered. The PD number determines exactly what part of the lens you look through.
No, the numbers on your frame indicate the frame’s size.
Yes! If your lenses are not centered correctly, then you could experience eye strain and discomfort. A very small margin of error might not cause problems. However, we prefer to be accurate. We want you seeing your best!
When you take an eye exam, the device you look through, is set to include your PD. Ask your doctor to include your PD on your prescription.
