Which of the following indicates "both eyes" in medical terminology?

The correct indication for "both eyes" in medical terminology is expressed as "OU," which stands for "oculus uterque" in Latin. This term is used by healthcare professionals to refer to treatments or observations intended for both eyes simultaneously.

In contrast, the other abbreviations represent different anatomical references: "AD" denotes the right eye (oculus dexter), "AS" refers to the left eye (oculus sinister), and "AU" indicates "both ears" (auris utraque). Understanding these distinctions is crucial for proper communication in the medical field, especially when prescribing medications or documenting observations related to vision or auditory assessments.