If you are sending an eyewear order for single vision lenses through the OfficeMate Lab Interface, the usage you select on the lab order determines which PD values are used by the lab:
Reading Single Vision: Only the near PD values are sent to the lab.
Distance Single Vision: Only the distance PD values are sent to the lab.
No usage selected: You will need to edit the PD values according to how the Rx is going to be dispensed. If the Rx is for reading, the distance PDs (for mono and binocular) should be zero. Likewise, if the Rx is for distance, the near PDs should be zero. The Lab Interface will switch the near and distance PD values depending on how the PDs were entered so the lab will receive the correct PD values. Eyefinity recommends this method if you send some orders through the Lab Interface, and others through the VSP interface, since the usage selected does not change the PD values on VSP orders.
Note: The Rx values for Add power and Seg Ht remain unchanged, regardless of the usage selected. The Rx should always be entered as the lab should receive it.