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Pupillary Distance help?

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Pupillary Distance help?

Postby chriz00 on Mon Mar 22, 2010 6:07 pm


I was wondering if someone can help me determine my PD.

I have my Rx available with me, it gives the PD for each eye (Dist. PD, by the way):

OD: 30.25

OS: 30.25

Do I have to add it together to get the whole PD??

If so, then it would be 60.5, thought they dont have an option for that in the section where you choose your PD!

Do I choose 60 or 61, what am I supposed to do?

If anyone can help me, that would be appreciated.

Re: Pupillary Distance help?

Postby Liz on Tue Mar 23, 2010 11:28 am

Hi chriz00,

On the web site we have a drop-down for binocular PD, which represents the distance in millimeters between the centers of two pupils. Our face is not 100% symmetrical and if the pupils are not located at the same distance from the nose, opticians take monocular Pupil Distance measurement. Your optician gave you monocular PD (even though it is the same for both eyes :wink: ), which is measured from the center of each pupil to the edge of the nose. So, technically you can add the two numbers for mono PD in order to get the number for bino PD. But we prefer to have as accurate and detailed information as possible. Do not select the value from the drop-down menu, just leave us a note in "additional customer's comments and instructions" field that your PD is OD 30.25 / OS 30.25.

We are planning to re-design our on-line prescription glasses form shortly. We will add additional drop-downs for monocular pupil distance as well as modify the current binocular pd menu, so that it would list decimals in addition to integers.
Liz @ OpticsPlanet

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Re: Pupillary Distance help?

Postby chriz00 on Tue Mar 23, 2010 12:22 pm

Cool, thanks for the help!