Hearing loss and deafness can develop during infancy or childhood or adolescence or during old age. Congenital hearing loss is relatively frequent and has serious negative consequences if it is not diagnosed and treated. Worldwide 360 million people living with disabling hearing loss. In this 32 million of these are children (<15 years of age). Children whose hearing loss is > 90 dB are considered deaf for the purposes of educational placement. Children cannot express what they can and what they can’t hear and clear observation is the best method used for assessing their hearing acuity. Hearing loss is affect the educational attainment, future employment, future earnings etc. Impairments in hearing can occur in one ear or sometimes it can be in both ears. This information may be useful to understand causes, various types of hearing loss, to give better treatment of the hearing loss, and predict the chances that future children will have hearing loss.
Prof. Dr. Bilal BİLGİN