Which of the following describes the administration of medications into the eye?

The administration of medications into the eye is accurately described by the option that states they are administered directly into the eye. This method typically involves techniques such as instilling drops or applying ointments directly onto the conjunctival sac or the corneal surface, which allows for localized treatment of ocular conditions. The purpose of these formulations is to achieve therapeutic effects specifically within the eye, targeting conditions like glaucoma, infections, or inflammation.

Other methods of medication administration, such as through a nebulizer, are not applicable for ocular treatments as this delivery route is designed for respiratory conditions, delivering medication to the lungs rather than the eyes. Additionally, medications intended for systemic effects would not generally be administered directly into the eye, as this route is typically reserved for localized treatment. Lastly, positioning is often important when administering eye drops to ensure that the medication is properly distributed across the surface of the eye and to minimize systemic absorption. Thus, the correct answer reflects the direct administration technique that is inherent in ocular medication delivery.