This tells us where your gaze falls in your lens. In order to best fit you with your new glasses, it’s important for us to know your PD. Have more questions? Contact us by email, live chat or call 1-800-639-478.Pupillary Distance (or PD, for short) is the distance between the centers of your pupils. Just have your prescription ready and make sure your measurements are accurate before you start the process.Ĭlick here to learn more about buying glasses online. Now that you know how to measure your pupillary distance, you’re ready to shop glasses online. Find your perfect pairĪfter measuring your pupillary distance, have fun figuring out what colours, frame size, and glasses shape you like best using our Virtual Try-On feature. We recommend that you contact your eye doctor to see if they kept this measurement on file for you before you DIY. Second, if you do have a glasses prescription but still can’t find your PD, the number may be missing because your optometrist or optician simply didn’t pass it on to you, as they would take care of it when you shopped in store. Learn more about how to read glasses and contact lens prescriptions. The measurements between contacts and glasses are different. If you have recently visited your eye doctor for an eye exam, you can find your PD on your prescription. If it was not provided, that opens up two possibilities.įirst, there’s a chance your prescription is for contact lenses, which is different than eyeglasses. When shopping for your next pair of glasses, it’s important to have all your prescription details handy to make the process quick and easy. Ask your optician to measure your dual PD if you want the most accurate results.Hold still: the more still your eyes are, the more accurate the result.Ask a friend: measuring your PD on your own might be a little tricky, so having a friend will be easier.Repeat the same procedure with your right pupil.Measure the distance between your nose bridge to the centre of your left pupil.Place the zero line of the ruler at the centre of your nose bridge.It comprises of two measurements and is generally indicated as ‘30(left)/33(right)’. It is the distance between one pupil to the centre of your nose bridge. 3 simple steps to measure dual PDĭual PD is also known as monocular PD. If you measure your PD the wrong way, you won’t have the right lens placement. It might result in a wrong conversion and your measurement won’t be accurate. Quick tip: If your ruler is in centimetres, you can convert it online, but don’t measure your PD in inches. Repeat these steps two to three times to get a consistent number. The average PD for adult women ranges from 46mm to 65mm adult men ranges from 59mm to 74mm.
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