Historically, hearing aid purchase required seeing an audiologist for hearing testing, hearing aid selection, hearing aid programming, and hearing aid fitting. That's because hearing aids unfortunately are not a one-size-fits-all solution to correct hearing loss due to the complexities of restoring hearing from a wide range of hearing loss patterns to a huge variety of different ear canal shapes/sizes. Of course, when an over-the-counter hearing aid is purchased, the end-user is now respon…
