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.
#Free ruler image inches mm download#
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.
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