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These designs are known as "Freeblank" designs in Essilor terminology,
- these designs need to be explicitly identified in Rx-Universe by sending "If the LNAM code for the freeblank design has "FBO" as the last 4 characters of the LNAM, then __FREEBLANK=1 " in the LDS request to DEO (note two underscores in the tag). This is done will be set automatically - this is the case for the majority of Essilor FBO designs. However, if the LNAM does not end with "FBO", then the design needs to be explicitly identified in Rx-Universe by setting up a VCA over-ride label on the design:
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