what is PD? - Buy Cheap Glasses Online, Prescription Glasses Frames Expert

Nathaniel Eyeglasses · #1 (**permalink**) 08-20-2010, 10:20 PM

I have a prescription form my eye doctor. and when i tried to order online they are asking for my PD? but it wasn't written on my prescription. what is PD and how to measure it?

Nelson Eyeglasses · #2 (**permalink**) 08-20-2010, 10:21 PM

Your pupillary distance, or PD, is the distance between the centers of your pupils in millimeters (mm).

You have several ways to obtain Pupil Distance, but we strongly recommend to having your PD measured by a professional.

Nelson Eyeglasses · #3 (**permalink**) 08-23-2010, 06:17 PM

PD measurement is necessary to ensure the correct positioning of your lenses within the frame you have chosen. It is very important because PD is the distance between the centers of your pupils in millimeters (mm).

Nancy Eyeglasses · #4 (**permalink**) 08-24-2010, 11:01 PM

1. If you bought glasses before, contact the store you got your glasses from and ask them for your PD(recommended).
2. Go to a local eyewear store or optometrist office and get your PD measured. Most of them will only charge $5 for measuring your PD(recommended).
3. Contact your optometrist for your PD(recommended).
4. Measure the PD yourself, though not recommended

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