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> I don't think PD is part of your optometrist's prescription; it wasn't on the prescription they gave me when I walked out the door. I can't remember who measu
by drdeadringer 9y ago
> I don't think PD is part of your optometrist's prescription; it wasn't on the prescription they gave me when I walked out the door. I can't remember who measured it but I copied it down from my optician's order when I ordered some glasses.
It wasn't on mine either, but on advice given to me I called up the optometrist to ask and they gave it to me with no problem at all.
I've started keeping//tracking my prescription some time ago just for good measure.
- dminor 9y agoMy optometrist refused to give it to me unless I bought glasses from them. They claimed the number depends on the specific glasses you have. Fortunately I was able to find it on a prescription from a previous provider.
- drdeadringer 9y agoI'm glad you were able to get the information from a more reasonable provider. I guess I was lucky to some extent, and I hope we're all able to find "better" providers.
- boptom 9y agoYour pupillary distance won't change depending on the frames you buy (it is a body measurement after all). However, where the optical centre of a lens is placed within a frame can vary from the PD a fair bit, depending on how the frames sit on your face, as the contact point of the frames do not always line up perfectly with the top of the nose bridge. Also, an oft looked over measurement is the distance from the bottom of the frame to the centre of the lens, which is important with complex prescriptions and cannot be measured without looking at the frame on your face. Having said this, with most low prescriptions the human tolerance is so high that it does not matter.