Which application involves delivering a drug into the eye?

The application that involves delivering a drug into the eye is ophthalmic. This term specifically refers to medications that are formulated for use directly in the ocular region. Ophthalmic preparations can include eye drops, ointments, and gels designed to treat various eye conditions, such as infections, inflammation, or dry eyes.

Otic applications are meant for the ears and are not suitable for eye delivery. Buccal applications involve placing a drug between the gum and the inner lining of the cheek to allow for absorption through the oral mucosa. Topical applications refer to medications applied to the surface of the skin, which may not be appropriate for direct delivery into the eye. Thus, the term ophthalmic clearly points to the correct route of administration for eye medications.