| Occluder: Maddox - Double Ended - Red Maddox with Vertical and Horizontal Ends | +G2115059001 | Good-Lite Company | Class I | |
| Occluder: Maddox - Insert - Red | +G2112070021U | Good-Lite Company | Class I | |
| Occluder: Maddox - Long Handheld Filter - Clear, with 45º Lines | +G2112050021S | Good-Lite Company | Class I | |
| Occluder: Maddox - Long Handheld Filter - Green, with 45º Lines | +G2112050001Q | Good-Lite Company | Class I | |
| Occluder: Maddox - Long Handheld Filter - Red | +G2112060011S | Good-Lite Company | Class I | |
| Occluder: Miniature (Fits Trial Frames) - 17 Pinhole | +G2111204001Q | Good-Lite Company | Class I | |
| Occluder: Multiple Pinhole Glasses | +G2112040071W | Good-Lite Company | Class I | |
| Occluder: Occluding Flipper | +G2115157001. | Good-Lite Company | Class I | |
| Occluder: "See the Eye" - Frosted | +G2117600001W | Good-Lite Company | Class I | |
| Occluder: Short handle - 17 Pinhole | +G2111203031S | Good-Lite Company | Class I | |
| Occluder: Short handle - 1 Pinhole | +G2111203011Q | Good-Lite Company | Class I | |
| Occluder: Short handle - 49 Pinhole | +G2111203001P | Good-Lite Company | Class I | |
| Occluder: Short Handle - Black | +G2111201001N | Good-Lite Company | Class I | |
| Occluder: White Translucent | +G2112100001M | Good-Lite Company | Class I | |
| OccuniX | 04260725761396 | Optima Medical Swiss AG | Class IIb | |
| OccuniX | 04260725761464 | Optima Medical Swiss AG | Class IIb | |
| OCIO | 08033959760154 | C.O.C. FARMACEUTICI S.R.L. | Class IIb | |
| OCTILIA NATURAL OCCHI IRRITATI E ARROSSATI | 08033959761021 | C.O.C. FARMACEUTICI S.R.L. | Class IIb | |
| OcuCare (GOF1bM-007) | 08054085121695 | ENABLE INNOVATIONS SRL | Class IIb | |
| Ocufresh-C Lubricating Eye Drops | 05060148681252 | Blumont Healthcare Ltd | Class IIb | |
| OCUFRESH EVERYDAY EYE DROPS - SINGLES | 05060148681375 | C.O.C. FARMACEUTICI S.R.L. | Class IIb | |
| OCUFRESH INTENSE RELIEF EYE DROPS - SINGLES | 05060148681382 | C.O.C. FARMACEUTICI S.R.L. | Class IIb | |
| Ocufresh Lubricating Eye Drops | 05060148680248 | Blumont Healthcare Ltd | Class IIb | |
| Ocufresh Lubricating Eye gel | 05060148680255 | Blumont Healthcare Ltd | Class IIb | |
| Ocufresh Night | 05060148680514 | Blumont Healthcare Ltd | Class IIb | |
| OCULAR SHIELD | 13700773727503 | France Chirurgie Instrumentation SAS | Class IIa | |
| Ocular Surface Analyzer DA-3 | 06973211070787 | ChongQing SunKingdom Medical Instrument Co., Ltd. | Class I | |
| OCULEN | 08033959760819 | C.O.C. FARMACEUTICI S.R.L. | Class IIb | |
| OCULLIVA | 08057729511135 | C.O.C. FARMACEUTICI S.R.L. | Class IIb | |
| Oculoheel ojo irritado | 08052990631148 | Nirial Pharma srl | Class IIb | |
| Oculoheel Ojo seco | 08052990631100 | Nirial Pharma srl | Class IIb | |
| Oculoo Minim Oogdruppelbril | 08721593106055 | Oculoo B.V. | Class I | |
| Oculoo Oogdruppelbril | 08721593106048 | Oculoo B.V. | Class I | |
| OCULUS 55110 | 00630238117500 | Ocular Instruments Inc. | Class Is | |
| OCULUS HYDRA LUBRICANT EYE DROPS | 08057729510626 | C.O.C. FARMACEUTICI S.R.L. | Class IIb | |
| OCULUS HYDRATION ADVANCE LUBRICANT EYE DROPS | 08033959760598 | C.O.C. FARMACEUTICI S.R.L. | Class IIb | |
| OCUREP | 08033959760178 | C.O.C. FARMACEUTICI S.R.L. | Class IIb | |
| Ocutein ribo-hyal | 08057018170500 | IROMED GROUP S.R.L. | Class IIb | |
| Ocutein ribo-hyal | 08057018171590 | IROMED GROUP S.R.L. | Class IIb | |
| OCUVANE Baby | 05999887148095 | SolMed Pharma Kft. | Class I | |
| OCUVANE Plus | 05999887148088 | SolMed Pharma Kft. | Class I | |
| ODS mono collirio (GOBBM-022) | 08054085121619 | ENABLE INNOVATIONS SRL | Class IIb | |
| ODS multi gocce oculari (GOBBP-017) | 08054085121626 | ENABLE INNOVATIONS SRL | Class IIb | |
| ODV3P | 00630238090018 | Ocular Instruments Inc. | Class Is | |
| ODVB | 00630238090032 | Ocular Instruments Inc. | Class Is | |
| ODVF | 00630238089982 | Ocular Instruments Inc. | Class Is | |
| ODVM | 00630238090001 | Ocular Instruments Inc. | Class Is | |
| ODVW | 00630238090025 | Ocular Instruments Inc. | Class Is | |
| OEMB1 Eye Model Bracket - Single Post | 00630238069755 | Ocular Instruments Inc. | Class I | |
| OEMB2 Table Top Eye Model Holder | 00630238080842 | Ocular Instruments Inc. | Class I | |