Single-sided deafness (SSD) is a unilateral hearing loss where the person has normal hearing or near to normal hearing in one ear and severe to profound hearing loss in the other ear.
One study (1) found that people with single-sided deafness do indeed benefit from a cochlear implant in difficult listening environments and are able to localise sound based on interaural level differences. The study finds that a cochlear implantation represents a promising treatment option for people with single-sided deafness.
Another study (2) evaluated auditory results and communicative benefits in adult patients with single-sided deafness (SSD) treated with cochlear implantation. The study found that people with single-sided deafness (SSD) who had a cochlear implant showed improvements in communication skills and sound discrimination in a noisy environment.
Finally, a third study (3) evaluated the long-term audiometric outcomes, sound localisation abilities, binaural benefits and tinnitus assessment of people with cochlear implants after a diagnosis of unilateral severe-to-profound hearing loss. The people in the study showed meaningful improvement in word understanding and sound localisation improved over time.
The study, “Single Sided Deaf Cochlear Implant Users in the Difficult Listening Situation: Speech Perception and Subjective Benefit” (1), was published in the journal Otology & Neurotology.
The study, “Cochlear implant in patients with single sided deafness: hearing results and communicative Benefits” (2), was published in the journal Cochlear Implants International.
The study, “Long-term Audiologic Outcomes After Cochlear Implantation for Single-Sided Deafness” (3), was published in the journal The Laryngoscope.
Sources: www.ncbi.nlm.nih.gov, the journals Otology & Neurotology, Cochlear Implants International and The Laryngoscope.