| OU | Oculus Uterque; Each Eyes, Both Eyes; 두눈 다 |
|---|---|
| OU | observation unit; Oppenheimer-Urbach [syndrome] |
| ou | both eyes together [Lat. oculi unitas] |
| OUB | oubain |
| OUBR | oubain resistance |
| OULQ | outer upper left quadrant |
| OURQ | outer upper right quadrant |
| OUS | overuse syndrome |