Lens Vendor Codes
| AG | Augen USA |
| AL | Aire-O-Lite |
| AO | American Optical |
| AP | Apexx Optical, USA |
| AR | Signet Armorlite |
| AS | Asahi |
| BR | Bristol C and D |
| CO | Conant Optical |
| CT | Centennial Optical Ltd |
| CZ | Carl Zeiss Optical, Inc. |
| DG | Dagas Optical USA, Inc. |
| EO | BluTech |
| ES | Essilor of America, Inc. |
| EY | Eyenavision |
| GE | Gentex |
| HM | Healthwell Medical / CU America |
| HO | Hoya Vision |
| IG | Intercast Group |
| IN | Indo Industrias |
| IO | Indizen Optical Technologies |
| KB | KBco |
| KN | Kaenon, LLC |
| LC | Lensco |
| KN | Kaenon, LLC |
| LC | Lensco |
| NK | Nikon |
| PI | Polycore, Inc. |
| PY | Polylens |
| RD | Rodenstock |
| RO | Rochester Optical Mfg. Co. |
| SA | Sola Optical USA |
| SC | Shore Lens |
| SH | Shamir Insight Inc. |
| SK | Seiko Optical Products |
| SL | Specialty Lens Corp. |
| SO | Somo Lens LLC |
| TG | Thai Optical Group |
| TK | Tokai Optical Co. |
| TR | Three Rivers Optical |
| UN | Unity |
| VE | Vision-Ease Lens |
| VI | Vision Dynamics |
| VS | VSP |
| VW | Vision Warehouse |
| VX | Varilux Lenses |
| XL | X-Cel Optical Co. |
| YG | Younger Optics |