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  1. en.wikipedia.org › wiki › Hearing_aidHearing aid - Wikipedia

    History. Regulation. Cost. Batteries. References. Further reading. External links. Hearing aid. A hearing aid is a device designed to improve hearing by making sound audible to a person with hearing loss. Hearing aids are classified as medical devices in most countries, and regulated by the respective regulations.

  2. www.consumer.org.hk › tips › 2021-tips-hearing-aids購買助聽器四部曲 即看本篇攻略+指南！｜消費者委員會

    第1步：聽力評估. 與配戴眼鏡前要驗眼一樣，買助聽器前都要先驗耳，透過純音聽力測驗（pure tone audiometry，PTA）了解聽障程度，及中耳阻抗聽力測驗（impedance audiometry，IA），診斷耳朵健康狀況，如有沒有中耳積水、耳膜穿孔等，看看是否適合佩戴助聽器。 如經醫生診斷及測試證實聽力有永久損失（不能經醫學手術等方法矯正），可到聽力中心選配助聽器。 弱聽級別. 健全聽覺人士能接收25分貝或以下的音量，弱聽者則只能接收高於25分貝的音量，當中再分為5個級別，由輕度弱聽（只能接收高於26 – 40分貝的音量）到極度弱聽（只能接收91分貝或以上的音量）。 該找誰評估？ 弱聽人士一般可到聽力中心進行聽力評估，部分中心更會提供折扣給予持有長者咭的人士。

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  4. www.centreforhearing.org › wiki › types-of-hearing-aids-findHearing Aids Types: Find The Right One For You! - Centre For ...

    2017年11月29日 · Although certain types of hearing loss can be treated with surgery, hearing aids also help restore hearing to a certain extent. Hearing aids are small electronic devices that a hearing-impaired person can wear in or behind the ear. Let’s understand hearing aids types in detail.

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