In medical terminology, the abbreviation ‘OS’ stands for ‘oculus sinister,’ which is Latin for ‘left eye.’ It is often used in prescriptions or medical documents to specify dosages or treatments intended for the left eye, especially in the context of ophthalmology.
Understanding such abbreviations is crucial for healthcare professionals to accurately interpret and communicate medical information. Misunderstanding these terms can lead to errors in treatment. For example, if a doctor writes a prescription for eye drops and notes ‘OS,’ it is imperative for the pharmacist and patient to know that the medication is meant for the left eye only. Being familiar with these terms helps ensure that patients receive the correct care.