Proparacaine Hydrochloride is primarily used as a topical ophthalmic anesthetic. It is applied to the eye to numb the surface before certain medical procedures, such as tonometry to measure intraocular pressure, removal of foreign objects, or minor surgical interventions. The rapid onset of action makes it highly effective for quick procedures, providing temporary relief from pain and discomfort. It is also used in diagnostic tests where patient comfort is essential. Due to its short duration of effect, it minimizes the risk of prolonged corneal exposure and potential complications. Always administered under medical supervision to ensure proper dosage and safety.