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Unilateral hearing loss (UHL) or single-sided deafness (SSD) is a type of hearing impairment where there is normal hearing in one ear and impaired hearing in the other ear. ==Signs and symptoms== Patients with unilateral hearing loss have difficulty in * hearing conversation on their impaired side * localizing sound * understanding speech in the presence of background noise. * interpersonal and social relations In quiet conditions, speech discrimination is no worse than normal hearing in those with partial deafness; however, in noisy environments speech discrimination is almost always severe.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Unilateral hearing loss」の詳細全文を読む スポンサード リンク
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