Just treating one ear of a patient with a bilateral hearing loss will not realise the full benefit of Baha®.

Baha user Josh

Overcome bilateral hearing loss with Baha®

Just treating one ear of a patient with a bilateral hearing loss will not realise the full benefit of Baha®. By treating the hearing loss bilaterally, the patient will have a much easier time in everyday life and will be able to enjoy social situations where sounds are coming from different directions. Their ability to hear in noise will also be improved.

Proven advantages for patients

The implications of having a hearing loss on one side, or indeed, the aiding of only one side in people with a hearing loss on both sides, has undergone significant scientific study. In a survey, people with an unbalanced hearing loss rated themselves as more disadvantaged than people with a balanced hearing loss.1

The benefit of having Baha on both sides (when there is a loss on both sides) has also been well documented. The key improvements recorded were an improved ability to localise where sounds are coming from, and improved hearing in challenging listening environments.2-4 An increase in satisfaction with their hearing solution has also been noted in several studies.5-6

Additional studies show that as the auditory system develops in the early years of life, the input of sound through both ears may be of importance for normal development.7

Benefits of treating both ears

  • Better hearing in noise
  • Easier to localise sound
  • Easier to enjoy social situations
  • Increased quality of life
  • Music and sound become more enjoyable


  1. Gatehouse S, Noble W. Interaural asymmetry of hearing loss, Speech, Spatial and Qualities of hearing scale (SSQ) disabilities and handicap. Int J Audiol 2004;43(2):100-114.
  2. Priwin C, Stenfelt S, Granström G, Tjellström A, Håkansson B. Bilateral Bone-Anchored Hearing Aids (BAHAs): an audiometric evaluation. The Laryngoscope 2004;114(1):77-84.
  3. van der Pouw CT, Snik AF, Cremers CW. Audiometric results of bilateral bone-anchored hearing aid application in patients with bilateral congenital aural atresia. The Laryngoscope 1998;108(4/1):548-53.
  4. Zeitooni M, Sadeghi A, Flynn MC. Benefits of localization and speech perception in patients fitted with bilateral Baha or air conduction hearing aid. Proceedings of the 11th International Conference on Cochlear Implants and Other Implantable Auditory Technologies; 2010; Stockholm, Sweden.
  5. Burrell SP, Cooper HR, Reid AP, Proops DW. Patient satisfaction with Bilateral bone-anchored hearing aids: the Birmingham experience. J Laryngol Otol Suppl 2002 Jun 1;37-46.
  6. Ho EC, Monksfield P, Egan E, Reid A, Proops D. Bilateral Bone-Anchored Hearing Aid: Impact on Quality of Life Measured With the Glasgow Benefit Inventory. Otol Neurotol 2009 Oct;30(7):891-6.
  7. Popescu MV, Polley DB. Monaural deprivation disrupts development of binaural selectivity in auditory midbrain and cortex. Neuron 2010 Mar 11;65(5):718-31.