Pupillary distance (pd)

 If your eye doctor didn’t include your PD measurement on your RX, there are a few things you can do to get your pupillary distance.

First, request the PD measurement from your eye care provider. Most eye doctor offices are familiar with patients requesting the PD to order their own eyewear, though some are hesitant to provide it if they fear you won’t purchase from them. 

Second, visit an eye care provider (ECP or eye care professional) to have your pupillary distance measured. 

Measuring your PD

As a last resort, you can measure your own PD (pupillary distance) with a millimeter ruler. The best option is to have a friend help you, but you can also look into a mirror and try on your own.

First, stand about 8 to 10 inches from a mirror and hold a ruler horizontally directly under your eyes. 

Close your left eye and line up the zero end of the ruler to the middle of your right pupil. Open your left eye and close your right. Read the measurement that lines up to the middle of your left pupil. This is your PD.

Which Frame will fit you?

To determine which frame will fit your face best, it only takes a few simple measurements.

Standing in front of a mirror or with help from a friend, measure your face with a millimeter ruler or cloth measuring tape to determine which frame will fit you best.


The horizontal diameter of one lens. Also known as your eye size.


The part that goes across the
bridge of your nose. The width of your nose determines this measurement.


The length from the front of the frame to the tip that rests behind your ear.


The vertical height of the lens


The horizontal measurement across the entire front of the frame.


Look on the inside of the temple. If the frame says 54-18-140 your measurements are:

Lens Width: 54
Bridge Width: 18
Temple Length: 140


You have 2-3 mm of wiggle room on each measurement, except the bridge.
We suggest keeping that within 2 mm.

Pupils should be near the center of the lens.
Lenses shouldn’t extend past the side of your face.
Eyebrows should be visible outside of the frame.

Need help?

If you're still having trouble, email us a photo of you holding a ruler horizontally across the center of your face/eyes, and we'll follow up with a personalized frame recommendation from one of our stylists.

Email your photo to: support@gameradvantage.com