For permanent hearing loss, hearing aids are a great solution. They are small, electronic devices that carry sound from the environment into your ear and make them louder. Hearing aids can be worn in your ear or behind it.
Hearing aids can help in both quiet and noisy situations. They are most useful for improving hearing and speech comprehension for people who have hearing loss as a result from damage to the small sensory cells or hair cells in the inner ear.
Hearing aids work by magnifying sound vibrations entering the ear that are large enough for the remaining hair cells to detect and pass to the brain. The more hair cells that are damaged result in more hearing loss and a higher need for hearing aid amplification to make up the difference.