This may be a stupid question, mainly because I've been dispensing eyewear for almost 15 years, but I've never before run into this situation.

Is it possible at all to get an accurate seg height for a PAL without having the frame present? I have a patient that wants a particular safety frame (to be provided by their employer), of which I have no physical example to use in measuring the seg height. I don't want to BS a PAL seg height for obvious reasons.

Man, I wish the guy wanted a flat-top...

Thanks in advance!