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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 3 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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3) The Essilor LDI file must be include __FREEBLANK, FRNT, BACK, BCTHK, DIA, OPC, and MBASE - any labels not being sent should be added, and then the digital processor re-started.
4) The design must be set up with a base curve chart for selection. There are no "suggested" base curve charts from Essilor for Freeblank designs, so the lab is free to use any chart desired. There is a "generic" digital selection chart (84) which the lab may choose to try out. If using this chart, the option "Add add to sphere" should be checked, and the option "LDS selects blanks to use" should NOT be checked. An alias entry will also be required to identify the blanks that should be selected for the freeblank design.
5) The Ideal designs, for example, should have the "Center design on frame" option checked (Essilor does decenter the designs on the FBO offerings).
LNAM codes for Essilor
LNAM codes for Essilor designs (freeblank or otherwise) are 6 character codes that identify the design, the material, the color and the coating. Therefore, the LNAM is not set in the lens style itself (since it is different based on material, color and coating), but rather is set in a VCA label table. There are two "standard" Essilor tables maintained for Rx-Universe - table "ESS" for Essilor designs in North America, and table "ESSL" for Essilor designs in Latin America. When setting up the Essilor digital type, the DS record must be set up to reference the appropriate table on the "Other tab": 
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Save device ENGMARK - if checked, then any ENGMARK records sent in the LMS file will be saved and sent to an engraver which requests ENGMARK. Note that ENGMARK is normally a series of records, and not a single record as with most other VCA labels.
Note that for Essilor Digital only, it is possible for Essilor to send different ENGMARK records for different devices, by including ENGMARK records in the LDCRYPT blocks for specific devices. In this case, any ENGMARK records in the main section (outside of any LDCRYPT blocks) will be sent to all devices requesting ENGMARK. ENGMARK records received within a DEO:VFT block will be sent to any GEN device; and ENGMARK records received within a DEO:LASEROPLM3 block will be sent to any ENG device. Any other DEO: value will be sent only to devices of that device type (for example, ENGMARK records received within a DEO:CTA block would be sent to a DEV=VTA device).
Switching To Short Corridor Designs
For many designs, Essilor offers the design in regular and short. The LMS is responsible for switching to the short design if the seg height of the order is < X (usually 18mm), and the add power is <= 3.00D. (If the add is > 3.00, the regular design is used regardless of the seg height).
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When design PHEAZ is used on an order, OMICS will check the alias file, and will switch to the PHEAZS design if the seg height of the order is < than the minimum specified for the requested design, and if the add power is less than the maximum add power specified on the alias lens style. Multiple alias records can be specified, to allow checking multiple lens styles (ie several corridor lengths).
DLP polishers
DLP-Server
If DLP-Server is being used with Essilor Digital, there are some specific rules that are in effect, beginning in version 6.46.00 of Rx-Universe:
1) For an Essilor Digital job, LAPBASX and LAPCRSX should be expressed in mm and not diopter
2) For any job that is not Essilor Digital, LAPBASX and LAPCRSX should not be sent at all to the DLP. The macros will be selected using GBASEX and GCROSX.
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The LAPBASX and LAPCRSX labels are omitted from the response.
Barcode
If the DLP polishers are used for Essilor digital, in a non-interfaced mode, and the lab wishes to print the DLP barcode on the ticket, this is now possible.
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