| NeurOpticsNeuroptics, Inc.Pupillograph | PLR-4000 Pupillometer | Neuroptics, Inc. | Pupillograph |
| PDM Digital PD MeterReichert, Inc.Pupil-size/-light reflex meter | 15020 | Reichert, Inc. | Pupil-size/-light reflex meter |
| PD-1INNOVA Medical Ophthalmics IncInterpupillary distance meter, electronic | PD-1 | INNOVA Medical Ophthalmics Inc | Interpupillary distance meter, electronic |
| YEASNChongqing Yeasn Science & Technology Co.,Ltd.Pupillometer, manual | HX-400 | Chongqing Yeasn Science & Technology Co.,Ltd. | Pupillometer, manual |