This is a test of your middle ear function and is useful for determining whether:

  • There is any fluid or congestion in your middle ear
  • There is a perforation (hole) in your eardrum
  • The eardrum is flaccid and weak
  • There is loss of continuity of the ossicles (middle ear bones) by disease or trauma
  • A grommet is blocked

Changing pressure in the ear canal causes dizziness indicating a fistula (defect) in the bone surrounding the labyrinth (balance organ)