| LVET | left ventricular ejection time; low volume eye test |
|---|---|
| MEB | Medical Evaluation Board; muscle-eye-brain [disease] |
| NEI | National Eye Institute |
| OD | Doctor of Optometry; obtained absorbance; occipital dysplasia; occupational dermatitis; occupational... |
| ol | left eye [Lat. oculus laevus] |