Originally Posted by
Optician1960
GokhanSF,
I think we can agree that FH is not taking the vertex, panto or wrap measurements himself so he does not know what is going into the LMS calculation. Now maybe the lab will tell him if he asks what these 3 measurements are, for each pair he orders, that goes into the compensation calculation. I'd bet a couple of dollars that even with that info, the likelihood that he is going to be able to place the frame in the vertometer at these precise measurements and then inspect the lenses is not very great (I feel the same way for most opticians here in the states). So why not take the easy and effective way out and just get the compensated Rx it is manufactured to?
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