Nearly half of people older than age 75 and approximately one third of those ages 64 to 75 have a hearing loss. The vestibulo-cochlear, or eighth, cranial, nerve transmits signals from the inner to the brain. If necessary, they are referred for an audiology visit. Before purchasing Cortexi Drops online you should verify the ingredients in the product description. If you have hearing aids from Oticon, Phonak, GN Resound, Widex, Signia, or Starkey they most likely have a sound generator that we can activate and program. If you have hearing devices from any of the manufacturers mentioned above, the cost for programming the device will be the same. NIOSH is the only study to report prevalence estimates of tinnitus according to U. After you've been diagnosed with tinnitus you may need to see an ear nose and throat doctor . An audiologist is able to diagnose, treat and manage hearing or balance conditions. Tinnitus is a common condition that can cause you to hear sounds from the outside. Background noise may reduce the amount that you hear. Tinnitus is when you experience ringing or other noises in one or both of your ears.