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Hearing
Loss

The three types of and clinical levels of Hearing Loss

A quick guide to Hearing Loss

To stop you having to search far and wide for answers, we’ve put together a quick guide that will talk you through the key points on the issue of hearing loss. Let’s get started.

There Are 3 Types of Hearing Loss

  • Conductive Hearing Loss is due to blockages, obstructions and foreign bodies in the ear canal. This could be something as common as earwax or the shape of the ear, to buildups of fluid or the growth of a tumour.
  • Sensorineural Hearing Loss occurs when the nerve cells themselves are damaged and is most common as a result of advanced ageing and/or continued loud noise exposure.
  • Hybrid Hearing Loss is a mixture of conductive and sensorineural loss and can require a combination of different treatments.

Hearing Loss Is Categorised In 4 Levels

  • Mild: Little noticeable impact on everyday life but could be an early sign of an underlying issue that will get worse over time.
  • Moderate: Hearing loss impacts everyday life but does not yet cause acute distress, depression or a complete inability to hear.
  • Severe: Unable to hear certain sound levels in a variety of environments and regularly struggle to communicate with friends and relatives.
  • Profound: Experiencing full or substantial deafness with a massively reduced ability to hear and communicate.

There Are 3 Main Causes of Hearing Loss

  • Ageing: With age the hair and nerve cells in the cochlea degrade and the quality of the sound detected reduces.
  • Infection & Disease: Head trauma and allergic reactions to certain forms of medication have also been shown to induce hearing loss.
  • High Noise Exposure: Irreversible damage can be caused by loud noise exposure with surgery and medication currently unable to repair the function of the inner ear.

From a global economic perspective unaddressed hearing loss carries a $15 billion cost to the Australian health sector through loss of productivity and societal cost.

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Australia Has 1.3 Million Noise Induced Hearing Loss Sufferers

      Exposure to loud noise — commonly in a working environment — causes cumulative damage to the delicate components of the inner ear.

      The inner ear doesn’t experience pain, which means it can become damaged without you realising anything is happening.

      Excess noise is currently recognised as a public health threat because of the way it causes a gradual degradation in hearing health.

How much noise is too much?

The short answer is any. No noise is good, as it is unwanted sound, and consequentially is recognised as public health threat.

 

Some extreme noises such as explosions and earthquakes, are so loud and powerful, that they can instantly damage the tiny hair cells in the ear (a phenomena known as stereocilia), but this is rare, unlike continual exposure in the workplace which is very common.

An individual who worked in a noisy environment and was subjected to prolonged loud noise may be suffering from Hearing Loss.

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