What does 'ou' mean in prescription terminology?

In prescription terminology, "ou" stands for "oculi uterque," which is a Latin phrase meaning "both eyes." This term is commonly used in ophthalmology to indicate that a medication or treatment should be administered in both eyes simultaneously. The abbreviation is crucial in ensuring that the patient correctly understands that the treatment is intended for both eyes, which is particularly important in cases of conditions affecting vision or eye health. Recognizing this terminology is essential for pharmacy technicians as it aids in accurate dispensing and patient counseling.