The Eustachian Tube Function Test (ETFT) evaluates how well your Eustachian tubes are working to equalize pressure in the middle ear. During the test, pressure changes are applied to the ear canal while monitoring eardrum movement and middle ear pressure. This helps identify issues such as blockages or dysfunction that can cause discomfort, hearing loss, or infections. ETFT provides crucial insights into middle ear health, guiding appropriate treatment for conditions affecting pressure regulation and overall ear function.