The only allowable values for the FrameEdgeType are listed here Plastic / Shell frame edge Metal frame edge Deprecated - No longer available (refer to sales staff) Rimless Screw Frame (requires additional edge thickness) Rimless Nylon Frame (requires additional edge thickness) Deprecated - No longer available (refer to sales staff) Shape as per Essilor standard shape definition set The only allowable values for the PredefinedShapeClass are listed here The only allowable values for the LensForm are listed here The only allowable values for Eye are listed here The only allowable values for the LensSource are listed here The recipient of this XML packet is to supply both lenses for this order. The recipient of this XML packet is to supply only the right lens for this order. The recipient of this XML packet is to supply only the left lens for this order. The sender of this XML will provide the lenses to be used for this order (this is a relatively infrequent special case, and generally would imply a FIT_ONLY order). The only allowable values for the SupplyProcess are listed here The recipient of this XML packet is to Grind a lens (or supply stock lens) and fit it to a frame. The frame source is specified by the FrameSource tag. The recipient of this XML packet is to Grind a lens (or supply stock lens) and supply uncut (or potentially edged-to-size, depending on business agreements and availability of appropriate trace data). The recipient of this XML packet is to Fit a lens into a frame. The source of the lens and frame is defined in the LensSource and FrameSource tags. The only allowable values for the FrameSource are listed here The frame will be supplied by whoever is receiving this XML packet The frame will be supplied by whoever is sending this XML There is no frame involved in this order (e.g. supply of an uncut lens) The only allowable values for the SafetyClass are listed here The Essilor code for this extra Quantity of this extra to be supplied Description from the sending application, to be used for descriptive labelling purposes if possible If this extra is applicable to only one eye, then this tag specifies which eye