What abbreviation refers to 'left eye' in medical terminology?

'Os' is the correct abbreviation for 'left eye' in medical terminology, particularly when referring to prescriptions or notes related to ocular health. In this context, 'os' stands for "oculus sinister," which is Latin for "left eye." Understanding these abbreviations is crucial for pharmacy technicians when interpreting prescriptions or communicating with healthcare providers to ensure accurate medication dispensing.

The other abbreviations reflect different anatomical references: 'od' stands for "oculus dexter," meaning 'right eye'; 'au' refers to 'auris utra,' meaning 'both ears'; and 'as' stands for "auris sinister," meaning 'left ear.' Each has its specific application in medical prescriptions, highlighting the importance of using the correct abbreviation to avoid potential errors in medication administration or medical communication.