| Term | Full Form | Category |
|---|---|---|
| IOIS | Idiopathic Orbital Inflamatory Syndrome | Others |
| IOIS | Imaging of Intrinsic Signals | Others |
| IOIS | Institute of Investigative Science | Others |
| IOIS | International Ocular Inflammaion Society | Others |
| IOIS | International Ocular Inflammation Society | Others |