Benefits of fitting one versus two hearing aids.

The consensus among audiologists is that fitting two hearing aids offers greater benefit than fitting one only. Most forms of hearing impairment affect both ears, so fitting only one hearing aid seems not to make any sense in the great majority of cases. The exception would be where fitting two aids adds to someone's hearing difficulties in the form, for example, of binaural interference--where the input to one ear distorts the combined binaural signal. But such cases are rare.

The presumed benefits of bilateral fitting lie in improved directional hearing and related forms of ...

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