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1. #Pupil size chart to scale how to
2. #Pupil size chart to scale download
3. #Pupil size chart to scale free

For best results, measure your PD multiple times and with different methods to minimize the chance of inaccurate results. When you use it, be sure to hold the paper straight and not bend it against your forehead, as that may skew the results.

#Pupil size chart to scale how to

Then simply follow the instructions on the PDF on how to prepare and use the ruler. Use another ruler that can measure in millimeters to compare it to the printed version and ensure that it matches perfectly.

#Pupil size chart to scale download

Click here to download the PDF of the ruler, and print it at 100% scale on US Letter paper (8.5 by 11 inches). To use the ruler, you will need a printer, paper (thicker paper works best), and scissors to cut out the ruler. Thank you! (Usage instructions continue below.)

#Pupil size chart to scale free

To interrupt this post with a quick request, if you find this PD ruler useful, please consider taking a moment and making a donation using the PayPal Donate button below to allow me to continue providing and maintaining free projects like this. If you would like to offer any feedback or request any changes to it, feel free to leave a comment, and I’ll see if I can tweak it or make a customized version for you. And so I prepared it in a format and with instructions for anyone to use, and so I am sharing it here, a free, downloadable, printable, PD ruler! (And later, this tool was updated in December 2020 with alternate nose cutouts on the second, lower, ruler to ensure it will work better for a variety of faces!) Recently, going through my old work, I thought that these days, a lot of people might feel less comfortable going to shop for new glasses in stores, and so this PD ruler I had already created might be of use to more people. After a few iterations, I had a ruler which I was happy with, we got our PD numbers, and we ordered our glasses.

Using what I had learned from our various efforts at getting an accurate PD number and noticing where the other rulers felt less user friendly, I went into Inkscape, my vector illustration program of choice, and made my own. Not satisfied with the other rulers, I decided I could take my graphic design skills and do one better. One was useful for getting a single PD reading but couldn’t help with getting a more precise value for each eye, another was meant for getting the dual PD reading (the separate value for each eye between the center of the pupil to the vertical center of the face) but it was hard to actually read the measurement and didn’t feel well positioned. I tried a couple different PD rulers, but I wasn’t completely satisfied with them. I found that online glasses providers have available PD rulers that anyone can download, print, and with the help of a friend or a mirror actually find their PD number. I was also helping a couple relatives who similarly wanted to order glasses online, and they didn’t have any information for the PD measurement on their prescriptions at all! So I needed a way to find the measurement. But I wasn’t quite sure what to enter, as I had gotten slightly conflicting numbers from different optometrists in the past.

But besides entering in my vision prescription, I also needed to provide my Pupillary Distance (PD) measurement, which is the distance in millimeters between the centers of the pupils of your eyes. Last year, I was looking for a new pair of glasses, and I decided I’d try ordering glasses online. Read on from the top for the story behind the ruler:Ĭlick here to download the printable PD ruler (includes instructions) (PDF) Scroll to the bottom for usage disclaimer. Scroll down for printing and usage instructions.