Which statement is true regarding ophthalmic medications?

The statement regarding ophthalmic medications that is true is that they must remain sterile. Sterility is crucial for ophthalmic preparations because the eyes are highly susceptible to infections. Medications that come into contact with the eye need to be free of microorganisms to prevent potential contamination that could lead to serious ocular infections.

Ophthalmic medications can include solutions, ointments, and gels, all of which are designed to be safe for application. The formulation process for these medications involves strict adherence to sterile techniques to ensure they do not introduce harmful pathogens. Maintaining sterility helps protect the delicate tissues of the eye and contributes to the overall effectiveness of the medication.

While certain techniques in administration might allow for direct application to specific areas of the eye, this does not negate the need for sterility. Additionally, while some formulations may avoid preservatives to minimize irritation, particularly for patients who are sensitive or require multiple doses, this is not universally true for all ophthalmic medications.