What is the primary purpose of local ophthalmic anesthetic agents?

Local ophthalmic anesthetic agents are primarily used to numb the eye area during various medical procedures, such as tonometry, which measures intraocular pressure, and other diagnostic or therapeutic interventions. These anesthetics work by blocking nerve transmission in the localized area, leading to a loss of sensation, which allows procedures to be performed without discomfort for the patient.

In the context of this question, while local ophthalmic anesthetics may influence certain aspects of medication absorption or provide temporary relief from pain, their main role is to facilitate ocular procedures by providing effective local anesthesia. This is crucial in ophthalmology, where patient cooperation and comfort are essential for accurate examinations and interventions.