CROS & BAHD Overview

CROS (Contra Lateral Routing of Signal) utilizes a device similar to a hearing aid to help people with unilateral hearing (single-sided deafness) understand sounds more easily. A microphone on your deaf side picks up sound and transmits it to another device on your good side. CROS is best for those with normal hearing in one ear and hearing loss that won’t benefit from use of a traditional hearing aid in the other. As with any hearing device, there are pros and cons. CROS technology allows you to hear sounds originating from your deaf side better. However, the additional sound from your bad side may interfere with your ability to comprehend what you’re hearing from your good side, as noise reduction is not possible with this technology.

Bone Anchored Hearing Devices

A bone anchored hearing device is a hearing device that relies on direct bone conduction to transmit sound. This surgically implanted device bypasses the auditory canal and middle ear, utilizing bones as a pathway for sound to reach the middle ear. It’s an alternative for people with chronic ear infections, congenital external auditory canal atresia and single-sided deafness. These patients usually do not benefit from conventional hearing aids.

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