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- 耳鏡檢查：打開耳朵的第一扇窗 Otoscopy: the first window into the ear
- 純音聽力檢查：描繪你的「聽力地圖」 Pure tone audiometry: mapping your “hearing landscape”
- 語音聽力檢查：「聽得見」不等於「聽得懂」 Speech audiometry: “hearing” is not the same as “understanding”
- 中耳功能檢查：客觀評估中耳健康 Middle ear function tests: objectively assessing middle ear health
- 高階客觀檢查：深入大腦，看見聲音的旅程 Advanced objective tests: looking inside the brain to see the journey of sound
聽力檢查霧煞煞？
一篇搞懂所有流程 Confused by Hearing Tests?
A Guide to Understanding All the Procedures
聽力檢查就像一場為耳朵做的全方位「健康檢查」。沒有任何單一檢查能看清聽覺系統的全貌，所以聽力師會採用一套「組合技策略」，結合需要您主動反應的「主觀檢查」和由儀器自動測量的「客觀檢查」，彼此互相驗證，拼湊出您最完整的個人聽力檔案。 A hearing test is like a comprehensive “health checkup” for your ears. No single test can reveal the entire picture of the auditory system. Therefore, audiologists use a “combination strategy” that blends “subjective tests” requiring your active response with “objective tests” measured automatically by instruments. These tests validate each other to piece together your most complete personal hearing profile.
耳鏡檢查：打開耳朵的第一扇窗 Otoscopy: The First Window into the Ear
這是所有耳部評估的第一步，也是最基礎的一步。聽力師會使用耳鏡，深入檢查您的耳廓、外耳道以及耳膜，看看有沒有耳垢堵塞、發炎、感染、穿孔，或是任何結構異常。 This is the first and most basic step of any ear evaluation. An audiologist uses an otoscope to examine your auricle, external ear canal, and eardrum for blockages, inflammation, infection, perforation, or any other structural abnormalities.
這個檢查扮演著「守門人」的角色。例如，如果發現耳道被耳垢完全堵塞，後續需要通暢路徑的檢查（如鼓室圖）就必須暫停。耳鏡的檢查結果，為後續所有檢查提供了必要的背景和先決條件。 This test acts as a “gatekeeper.” For instance, if the ear canal is completely blocked by earwax, subsequent tests that require a clear pathway (like a tympanogram) must be postponed. The results of the otoscopy provide the necessary context and prerequisites for all subsequent tests.
純音聽力檢查：描繪你的「聽力地圖」 Pure Tone Audiometry: Mapping Your “Hearing Landscape”
這就是我們傳統印象中的「聽力測驗」，您會戴上耳機，聽到「嗶嗶」聲時就舉手或按下按鈕。它的目的是找出您在不同聲音頻率（音高）下，能聽到的最小音量，也就是您的「聽閾」。 This is the traditional “hearing test” we all know. You’ll wear headphones and raise your hand or press a button when you hear a “beep.” Its purpose is to find the softest sound you can hear at different frequencies (pitches), which is your “hearing threshold.”
兩種路徑，找出問題根源 Two Pathways to Find the Root of the Problem
- 氣導 (Air Conduction)：透過耳機傳遞聲音，檢測的是從外耳、中耳到內耳的「完整聽覺路徑」。 Air Conduction: Sound is delivered through headphones to test the “complete auditory pathway,” from the outer ear, through the middle ear, to the inner ear.
- 骨導 (Bone Conduction)：將一個振動器放在您的耳後乳突骨上，聲音透過頭骨振動直接傳到內耳，等於是「抄捷徑」，專門用來評估內耳及之後神經路徑的功能。 Bone Conduction: A vibrator is placed on the mastoid bone behind your ear. Sound travels through skull vibrations directly to the inner ear, essentially “taking a shortcut” to specifically evaluate the function of the inner ear and the neural pathways beyond it.
為什麼檢查時另一隻耳朵要聽噪音？—「遮蔽」的原理 Why Do You Hear Noise in the Other Ear During the Test?—The Principle of “Masking”
當一邊耳朵聽力較差時，給予測試耳的聲音如果夠大聲，可能會穿過頭骨被另一邊較好的耳朵聽到，造成「作弊」現象。為了得到真實的結果，聽力師會在好的那邊耳朵播放一種「遮蔽噪音」，把它「蓋住」，確保只有正在測試的耳朵在聽，這就是「遮蔽」。 When hearing is poorer in one ear, a sound loud enough in the test ear might travel through the skull and be heard by the better ear, leading to “cheating.” To get an accurate result, the audiologist plays a “masking noise” in the better ear to “cover” it, ensuring only the test ear is listening. This is the principle of “masking.”
判讀聽力圖：區分聽損類型 Interpreting an Audiogram: Distinguishing Hearing Loss Types
檢查結果會被畫在一張稱為「聽力圖」的圖表上。透過比較「氣導」和「骨導」的結果，就能精準判斷聽力損失的類型： The test results are plotted on a chart called an “audiogram.” By comparing the “air conduction” and “bone conduction” results, the type of hearing loss can be precisely determined:
- 傳導性聽損：骨導正常，但氣導下降。代表聲音在傳入內耳的路徑上（外耳或中耳）出了問題。 Conductive Hearing Loss: Bone conduction is normal, but air conduction is decreased. This means there is a problem with the sound pathway to the inner ear (the outer or middle ear).
- 感音神經性聽損：氣導和骨導都同樣程度地下降。代表問題出在內耳（耳蝸）或聽神經。 Sensorineural Hearing Loss: Both air and bone conduction are decreased to the same degree. This indicates a problem in the inner ear (cochlea) or the auditory nerve.
- 混合性聽損：氣導和骨導都下降，但氣導下降得更嚴重。代表傳導路徑和內耳神經兩邊都有問題。 Mixed Hearing Loss: Both air and bone conduction are decreased, but air conduction is significantly worse. This indicates a problem in both the conductive pathway and the inner ear nerves.
語音聽力檢查：「聽得見」不等於「聽得懂」 Speech Audiometry: “Hearing” Is Not the Same as “Understanding”
只聽懂「嗶嗶」聲還不夠，能聽懂別人說話才最重要。語音聽力檢查就是用來評估您接收與理解口語的能力。 Just hearing “beeps” is not enough; being able to understand speech is what truly matters. Speech audiometry is used to assess your ability to receive and comprehend spoken language.
- 語音接收閾 (SRT)：測量您能聽懂50%雙音節詞彙（如「飛機」、「鉛筆」）的最小音量。主要用來驗證純音聽力檢查的準確性。 Speech Reception Threshold (SRT): Measures the lowest volume at which you can correctly understand 50% of two-syllable words (e.g., “airplane,” “pencil”). It is mainly used to verify the accuracy of the pure tone audiometry.
- 語音辨識率 (WRS)：在一個舒適、夠大聲的音量下，測量您能正確辨識多少百分比的單音節字詞。這個分數非常重要，它反映了語音的「清晰度」。 Word Recognition Score (WRS): Measures the percentage of single-syllable words you can correctly identify at a comfortable, sufficiently loud volume. This score is very important as it reflects the “clarity” of speech.
如果一個人的WRS分數很差，出現「聽得到聲音，但聽不懂在說什麼」的狀況，這可能暗示著問題不只在內耳，而可能出在更深層的聽神經上。 If a person has a very poor WRS, experiencing a situation where they “can hear sounds but can’t understand what’s being said,” it might suggest a problem not just in the inner ear but possibly deeper in the auditory nerve.
中耳功能檢查：客觀評估中耳健康 Middle Ear Function Tests: Objectively Assessing Middle Ear Health
這類檢查不需要您主動反應，儀器會自動測量，因此結果非常客觀。 These tests do not require your active response. The instrument measures automatically, so the results are very objective.
鼓室圖檢查：幫你的中耳做「壓力測試」 Tympanometry: A “Pressure Test” for Your Middle Ear
聽力師會將一個探測頭放入您的耳道，儀器會自動向耳道內打入微量的空氣來改變壓力，並測量您的耳膜如何反應。這能評估中耳的壓力狀態與耳膜的活動能力，是診斷中耳積水、耳咽管功能不良或耳膜穿孔的重要工具。 An audiologist places a probe in your ear canal. The instrument automatically introduces a small amount of air to change the pressure and measures how your eardrum responds. This assesses the middle ear’s pressure status and the eardrum’s mobility, making it an important tool for diagnosing middle ear fluid, Eustachian tube dysfunction, or eardrum perforation.
聽覺反射測試：一條通往腦幹的神秘迴路 Acoustic Reflex Test: A Mysterious Pathway to the Brainstem
當我們聽到巨大聲響時，中耳裡有一條小肌肉會不自主地收縮，這是一種保護機制。這個測試就是測量這個反射。因為整個反射路徑從耳朵的聽神經，傳到腦幹，再由顏面神經傳回來，所以它不僅是檢查耳朵，更是一項強大的神經學篩檢工具，能幫助判斷問題可能的位置。 When we hear a very loud sound, a tiny muscle in the middle ear involuntarily contracts. This is a protective mechanism. This test measures that reflex. Because the entire reflex pathway travels from the auditory nerve in the ear to the brainstem and then back via the facial nerve, it is not just an ear exam but a powerful neurological screening tool that helps pinpoint the possible location of a problem.
高階客觀檢查：深入大腦，看見聲音的旅程 Advanced Objective Tests: A Journey into the Brain to See How Sound Travels
對於嬰幼兒或無法配合主觀檢查的人，以下這些客觀檢查就扮演了關鍵角色。 For infants, young children, or anyone unable to cooperate with subjective tests, these objective tests play a crucial role.
- 耳聲傳射 (OAE)：這項檢查可以偵測到內耳耳蝸中「外毛細胞」健康時所發出的微弱「回音」。它是目前新生兒聽力篩檢最主要的工具，快速又方便。 Otoacoustic Emissions (OAE): This test can detect the faint “echoes” produced by healthy “outer hair cells” in the inner ear’s cochlea. It is the primary tool for newborn hearing screening, as it is fast and convenient.
- 聽性腦幹反應檢查 (ABR)：這項檢查不是測量「聽覺」，而是直接在頭皮貼上電極，測量聲音訊號從聽神經傳到腦幹時所產生的「腦波」。它能評估整個聽覺神經路徑的健康狀況，對於診斷聽神經病變至關重要。 Auditory Brainstem Response (ABR): This test doesn’t measure “hearing” but directly places electrodes on the scalp to measure the “brainwaves” generated as sound signals travel from the auditory nerve to the brainstem. It assesses the health of the entire auditory neural pathway and is crucial for diagnosing auditory neuropathy.
組合技的威力：揪出「聽神經病變」 The Power of Combination: Pinpointing “Auditory Neuropathy”
有些罕見的聽損，例如「聽神經病變」，患者的內耳耳蝸是好的，但聽神經無法有效傳遞訊號。因此，他們做OAE檢查會是「正常」（因為有回音），但做ABR檢查卻是「嚴重異常」（因為訊號傳不上去）。「OAE正常，ABR異常」這個獨特的組合，就成為了診斷此類疾病的經典標誌，也凸顯了組合式檢查的重要性。 In some rare types of hearing loss, such as “auditory neuropathy,” the patient’s inner ear cochlea is healthy, but the auditory nerve cannot effectively transmit signals. Therefore, their OAE test will be “normal” (because there’s an echo), but their ABR test will be “severely abnormal” (because the signal can’t be transmitted). The unique combination of “normal OAE, abnormal ABR” has become a classic sign for diagnosing such conditions, highlighting the importance of combined testing.
結論 Conclusion
從最簡單的耳鏡檢查，到最複雜的腦幹反應測試，每一項聽力學檢查都環環相扣、互為表裡。主觀的聽力圖告訴我們「聽損的程度和類型」，而客觀的鼓室圖、聽覺反射和電生理檢查則從物理和神經層面解釋了「為什麼會造成這樣的聽損」。 From the simplest otoscopy to the most complex brainstem response tests, every audiological exam is interconnected and complementary. The subjective audiogram tells us the “degree and type of hearing loss,” while objective tests like tympanometry, acoustic reflexes, and electrophysiological exams explain the “why” from a physical and neurological perspective.
正是這種主觀與客觀、行為與生理測試之間的交叉驗證，才構成了現代聽力學精準診斷的基石，確保了評估結果的全面、準確與可靠。 This cross-validation between subjective and objective, behavioral and physiological tests forms the cornerstone of modern audiology’s precise diagnostics, ensuring that assessment results are comprehensive, accurate, and reliable.
最後再次提醒，本篇文章旨在提供健康知識。任何檢測結果的解讀，都必須由專業的醫療人員，結合您的完整病史和臨床狀況來進行綜合判斷。 As a final reminder, this article is intended to provide health knowledge. The interpretation of any test results must be made by a professional healthcare provider, who will make a comprehensive judgment based on your complete medical history and clinical condition.
