Hearing with two ears provides a more balanced and focused representation of sounds. You can take advantage of the natural way that your brain interprets sounds and their location, making it easier to nd and hear what you want to hear.
Your complete hearing solution should consider both ears. Wearing devices that work together can make it easier to hear the world around you.
(One cochlear implant for each ear.)
If you obtain minimal or no benefit from hearing aids in either ear, you should consider cochlear implants for both ears. Bilateral cochlear implants provide unique bene ts that make it easier to hear the world around you.
The natural benefits of hearing in stereo
Hearing with two ears provides a more balanced and focused representation of sounds. With two cochlear implants, you can take advantage of the natural way that your brain interprets sounds and their location, making it easier to nd and hear what you want to hear.
Wear and go with swappable devices
The Naída CI sound processors are equipped to be used on either ear, so there’s no left or right side to consider. This makes it easy to wear and manage two devices.
Hear important sounds in both ears
Your two Naída CI devices are able to share sound signals with each other. This means when one ear has a clear listening advantage, you can instantly send that better sound to the other device, so you hear the clearer sound in both ears.
Crystal clear wireless streaming
You can choose from a wide selection of Phonak wireless accessories that stream audio directly to both sound processors for effortless hearing.
Whether you already have a cochlear implant or you’re considering cochlear implants for the first time, using cochlear implants in both ears (bilateral implantation) provides the best possible hearing.1
Two cochlear implants provide:2,3
“After going bilateral, I was able to localize sounds, I have no fear of walking on roads, because I can hear cars approaching behind me. I hear in noisy environments, group meetings, and music sounds better.”
— Becky Hague, implanted at age 51, bilaterally implanted at age 52
Natural hearing is called binaural hearing – “bi” for two, “aural” for ears. Two ears work together to gather the full sphere of sound and deliver it to the brain where it’s almost instantly processed, giving the listener the ability to respond quickly and appropriately. Bilateral implantation merges sound from two ears so that your hearing is better than with one implant alone.
While the ability to develop language skills is strongest at a young age, adults who have depended on one implant for several years can still experience the many benefits of bilateral implantation.
If you have one “good ear” with your first cochlear implant, consider the additional benefits a second implant can bring. Hearing with two cochlear implants can give you a richer sound with more dimension and improved ability to hear softer sounds.2,3
Adults with two cochlear implants may:
Clinical research shows that two cochlear implants greatly improve your or your child’s ability to hear and understand speech better in noisy environments like meetings, lively classrooms, and bustling restaurants.1
Two cochlear implants help adults interact with friends and business associates at noisy restaurants or clamorous parties. Adults who use two cochlear implants hear much better in noise compared to those with just one.
Percent of adults showing better scores with two implants compared to one implant for three tests of listening to speech in noise of varying difficulties.1
Adults with cochlear implants can understand speech better with two implants compared to listening with one implant alone – even in quiet settings. From romantic dinners to parent-teacher conferences, bilaterally implanted adults recognize more spoken words.
Average word scores in quiet 3, 6, and 8 months after implantation for 15 adults implanted in both ears at the same time. Understanding speech is easier with two implants, and improves with experience.1
From ambulance sirens to honking car horns, two cochlear implants help adults more accurately determine where sound is coming from, just like their normal-hearing peers.
Left vs. right localization accuracy for the right implant alone, left implant alone, and both implants together. Localization is improved significantly when using two implants.1
AB has provided a list of common questions. However, if you have a question you don’t see answered here, contact the AB office in your region.
Koch DB, Soli SD, Downing M, and Osberger MJ. 2009. Simultaneous Bilateral Cochlear Implantation: Prospective Study in Adults. Cochlear Implants International (February 26), Cochlear Implants International, n/a. doi: 10.1002/cii.413
Zeitler D, et al. 2008. Speech Perception Benefits of Sequential Bilateral Cochlear Implantation in Children and Adults: A Retrospective Analysis. Otology & Neurotology. 29 (3): 314–325.
EN 45502-2-3:2010. Active Implantable Medical Devices. Particular Requirements for Cochlear and Auditory Brainstem Implant Systems.
Balkany T, Hodges A, Telischi F, et al. 2008. William House Cochlear Implant Study Group: Position Statement on Bilateral Cochlear Implantation. Otology & Neurotology. 29: 107–108.