Thanks to significant advancements in technology and early identification, children with hearing loss are making remarkable progress in oral communication. Today, it is entirely feasible for a child with severe hearing loss to develop oral language, attend their local public school, and thrive academically.
Understanding Hearing Loss
Hearing loss can be categorized into two primary types:
Conductive Loss: This type of hearing loss occurs when the outer or middle ear fails to function correctly, leading to sounds being “blocked” and not carried to the inner ear for processing. Conductive losses are often treatable with medication or surgery. Ear infections, which cause fluid buildup in the middle ear, are a common cause of conductive hearing loss.
Sensorineural Loss: The most common type of hearing loss, sensorineural loss, occurs due to issues within the inner ear or auditory nerve. Unlike conductive loss, this type is not typically treatable with surgery. However, hearing aids or cochlear implants can be highly effective in managing the condition. Sensorineural loss can affect one or both ears and can vary in severity and frequency.
The Range of Hearing Loss
The human ear is capable of hearing a wide range of frequencies, from a low 125 Hz to a high 8000 Hz. Speech sounds span across all these frequencies. The severity of hearing loss is measured in decibels (dB) on a scale from 0 to 120 dB. Here’s a breakdown of hearing loss severity:
Normal Hearing: -10 to 15 dB
Slight Hearing Loss: 16 to 25 dB
Mild Hearing Loss: 26 to 40 dB
Moderate Hearing Loss: 41 to 55 dB
Moderately-Severe Hearing Loss: 56 to 70 dB
Severe Hearing Loss: 71 to 90 dB
Profound Hearing Loss: 90+ dB
It is common for individuals to experience varying degrees of hearing loss across different frequencies, meaning they may hear some sounds better than others.
Hearing Aids and Cochlear Implants
For individuals with sensorineural hearing loss, hearing aids are often the first line of treatment. Audiologists carefully tune these devices to amplify the sounds that the patient struggles to hear, while optimizing the sounds that they can already hear well.
In cases where hearing aids are not sufficient due to the severity of the hearing loss, cochlear implants become a viable option. These implants can be used in children as young as one year old. Unlike hearing aids, which amplify sound, cochlear implants bypass the damaged parts of the ear and directly stimulate the auditory nerve.
The Role of Speech and Language Therapy
Speech and language therapy play a crucial role in the development of communication skills for children and adults with hearing loss. For children, speech-language pathologists (SLPs) with expertise in hearing loss help their patients become aware of sounds, recognize and identify words, and begin to comprehend spoken language.
For adults, SLPs assist with aural rehabilitation, teaching communication strategies to maximize their residual hearing. Involvement of an SLP is essential for anyone diagnosed with hearing loss to fully maximize their oral language and communication abilities.
Source URL: https://www.speechandot.com/hearing-loss-cochlear-implants/

