The World Health Organization has estimated that approximately 278 million people worldwide have moderate to profound hearing loss in both ears. Diagnostic medical records from the World Health Organization suggest that the incidence of hearing loss is frequently increasing due to the age of the population and improving life expectancy rates. Additionally, according to HealthyHearing 2012, the majority of types of hearing loss people experience are sensorineural hearing losses; the hair cells of the inner ear or the nerve pathways running from the inner ear to the brain are severely damaged. However, lines of technology such as hearing aids continue to expand and help hearing loss sufferers; the technology that scientists had produced and offered to the public in the past could only amplify sound. Cochlear implant development has grown significantly since an Australian otolaryngologist, Professor Graeme Clark and his team of three Melbourne health professionals, audiologist Professor Richard Dowell, surgeons Dr. Robert Webb and Brian Pyman, managed to find a solution to effectively restore hearing by developing the first multi-channel hearing aid and proving his proposition; he performed the first implantable prosthetic "bionic ear" surgery on a human patient with the help of a medical technology organization, Nucleus, in 1974. This success allowed doctors to commercially perform cochlear implants in patients from 1982 to present in Australia and other countries. in the world. International researchers applied an implanted device that featured internal and external wires leading to an individual's head. Clark theoretically hypothesized that the implanted device offers more possibilities...... middle of article ......in this example. According to the Cochlear Implant Cooperative Research Center, the use of two microphones allows users to advance speech perception in the environment, regeneration of the auditory nerve is necessary to improve productivity, decrease surgical risks and fully develop a cochlear implant that resides completely under the skin to decrease difficult cochlear use. Ultimately, it is clear that Professor Graeme Clark has significantly changed the world for people with moderate to profound hearing loss, despite the amount of risk. Given the number of limitations, the cochlear implant is considered a premature technology that scientists are frequently improving. With the gradual contribution of technology, what will be the future development of cochlear implant and how can their theoretical research become a reality ??