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Crystal Cirque du Sparkle Hair Clip

Crystal Cirque du Sparkle Hair Clip

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$15.00

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PUPILLARY DISTANCE

Pupillary Distance (PD) is the distance, in millimeters, between the center of one pupil to the center of the other. The PD is needed to manufacture your eyeglasses because it determines the exact optical center of the lens, which is the point where you look through the lens. PD is especially important for manufacturing progressive lenses.

Once you have your PD, you can upload your photo to the Frame Fit tool and begin trying on glasses. The Frame Fit tool allows you to see exactly what the glasses look like on you and how well they fit the size and shape of your face. If you don't have your PD, you can find out how to measure it here.

How to Measure Your Pupillary Distance (PD)

What is Pupillary Distance?

Pupillary distance (PD) measures the space between the pupils of your eyes. Knowing this measurement is important to make sure your eyes match up with the optical center of your lenses. The average adult’s PD is between 54-74; kids' are between 43-54.

How to Measure Your PD?

Stand 8 in. away from a mirror.
Hold a ruler against your brow.
Close your right eye then align the ruler’s 0 mm with the center of your left pupil.
Look straight then close your left eye and open your right eye.
The mm line that lines up to the center of your right pupil is your PD.

Check out the graphic below for more information and to learn how your friend can help you measure your PD.

Armed with your PD and prescription, you can shop at Zenni to find your perfect pair of glasses.

Portrait Upload

Step 1: Select Frame Size

Small Medium Large

Step 2: Add an Image

For best results: Use the following guidelines

Upload medium size image for better result, preferable image size should be 400px*600px
Face should be straight on and level
Use a photo without glasses
Don't tilt your head or use a side view