How is medicine indicated to be used in the left eye according to medical abbreviations?

In medical terminology, the abbreviation for the left eye is "OS," which stands for "oculus sinister." This term is derived from Latin, where "oculus" means eye and "sinister" refers to the left side. Therefore, when a prescription or medical instruction indicates the use of medicine in the left eye, it will typically use the abbreviation OS.

The other commonly used abbreviations are "OD," which stands for "oculus dexter" and refers to the right eye, and "OU," which means "oculus uterque," indicating both eyes. "SP" does not relate directly to any common abbreviation for eye prescriptions or locations. Understanding these abbreviations is crucial for accurately interpreting prescriptions and ensuring the correct administration of medications.