Lens Description Standard version 2.2 Jan 2018

Field definitions and requirements for each record

Reference the full standards document here
# ? Field Label Description / Definition Literals Data Type
1 M MFG Unique Manufacturer Identifier See 6.2 Literal, 6-character max
2 M Class Finished FIN Literal, 3-characters
Finished / Extra Thin FNT
Semi-Finished SFN
Semi-Fin / Extra Thick SFX
3 M Description Product Description Text, 255-character max
4 M Material Glass GL Literal, 2-characters
Glass Mid-Index (n > 1.53) GM
Glass High-Index (n > 1.59) GH
Glass Ultra-Index (n > 1.65) GU
Plastic PL
Plastic Mid-Index (n > 1.53) PM
Plastic High-Index (n > 1.59) PH
Plastic Ultra-Index (n > 1.65) PU
Polycarbonate PY
Other Plastic OP
5 M Material Brand Material Brand Name Text, 255-character max
6 M Product Name Product Brand Name Text, 255-character max
7 M Style Single Vision SV Multiple literals, 2
Bifocal BI characters each separated
Trifocal TR by spaces
Quadrifocal QD
Progressive PR NOTE: Multiple literals,
Double/Dual Segment DS when used, shall appear in
40% Intermediate 40 the sequence provided in
60% Intermediate 60 this list.
70% Intermediate 70
Flat-Top FT
Executive-Style EX
Curve-Top CT
Round RD
Task-Specific TS
Aspheric AS
Atoric AT
Lenticular LT
8 M Filter Clear (DEFAULT) NONE Multiple literals, 4-
Mirrored MIRR characters each separated
Photochromic PHOT by spaces
Polarized POLR
Tinted TINT
UV-Inhibiting UVRI
High Energy Visible HEV
Tint Color See 6.1
9 M Coating Un-Coated (DEFAULT) UC Multiple literals, 2-
Anti-Reflective Coating AR characters each separated
Scratch-Resistant Coating SR by spaces
10 M Coating Brand Coating Brand Name Text, 255-character max
11 M Right OPC Right Eye Optical Product Code Text, 10-character
12 M Left OPC Left Eye Optical Product Code Text, 10-character
13 M Diameter Maximum Diameter of Blank Numeric, 0-decimal
14 M Sph / Base Sphere Power for FIN Lenses; Numeric, 2-decimal
Nominal Base for SFN Lenses
In diopters
15 M Cyl / Add Cylinder Power for FIN Lenses; Numeric, 2-decimal
Addition Power for SFN Lenses
In diopters
16 M Frnt Rad Front Curve Radius for Power Numeric, 3-decimal
17 M Bck Rad Back Curve Radius Numeric, 3-decimal
18 M C Thk Center Thickness Numeric, 1-decimal
19 M E Thk Edge Thickness Numeric, 1-decimal
20 M LRP In Horizontal Location of LRP Numeric, 1-decimal
21 M LRP Down Vertical Location of LRP Numeric, 1-decimal
22 M d Index Refractive Index of He d-line Numeric, 3-decimal
23 M N Ref Helium d Reference System ND 2-character literal
Mercury e Reference System NE
24 e Index Refractive Index of Hg e-line Numeric, 3-decimal
25 Abbe Abbe Value Numeric, 0-decimal
26 Density Density of Lens Material Numeric, 2-decimal
27 PRP Out Horizontal Location of PRP Numeric, 1-decimal
28 PRP Up Vertical Location of PRP Numeric, 1-decimal
29 Seg Wd Width of Widest Part of Seg Numeric, 1-decimal
30 Seg Thk Fused Glass Seg Thickness Numeric, 1-decimal
31 Int Ht Height of Trifocal Intermediate Numeric, 0-decimal
32 Slab Slab-off Value (Prism Diopters) Numeric, 2-decimal
33 Car Rad Radius of Lentic Carrier Curve Numeric, 3-decimal
34 Bwl Diam Bowl Diameter of Lenticular Numeric, 0-decimal
35 Ver Diam Minimum Vertical Diameter Numeric, 0-decimal
36 Dia Diam Diagonal Diameter Deprecated (Blank)
37 Seg Sep Separation of Dual Segments Numeric, 1-decimal
38 Up Add Upper Add Power of Dual Seg Numeric, 2-decimal
39 Special Product Non-AR Compatible NAR Multiple literals, 3
Product Non-Tintable NTN characters each separated
Lip Encroachment LIP by spaces
Polarized Mark Encroachment POL
‘Optimal’ Rectangular Blank OPT
Embedded Object OBJ
40MCat Code Unique Product Identifier Text, 16-character max
41MFilter Brand Filter Brand Name Text, 255-character max
42 DRP In Horizontal Location of DRP Numeric, 1-decimal
43 DRP Up Vertical Location of DRP Numeric, 1-decimal
44 NRP In Horizontal Location of NRP Numeric, 1-decimal
45 NRP Up Vertical Location of NRP Numeric, 1-decimal
46 Hor Diam Minimum Horizontal Diameter Numeric, 0-decimal
47 Nom Diam Nominal or Marked Diameter Numeric, 0-decimal
48 Obj Clear Imbedded Object Clearance Numeric, 1-decimal
49 Obj Rad Imbedded Object Radius Numeric, 2-decimal