Symptoms Of Hearing Loss

Hearing loss, or hypoacusis, defines the total or partial inability to hear through one or both ears. The initial symptoms of hearing loss develop more frequently in persons aged between 40 and 65. Although slight loss of hearing is common after the age of 20, obvious symptoms emerge gradually and seldom lead to complete deafness.

Here we are going to share with you some important Symptoms Of Hearing Loss.


Transmissive hypoacusis:

Characterised by damage to the outer ear or middle ear. Transmissive hypoacusis occurs when the sound stimulus cannot reach the auditory cells due to purely mechanical reasons. All tones will sound lower and dampened to patients affected by this type of hearing loss, regardless of frequency.

They feel as if they have plugged ears and speak with a low voice, as the latter appears very loud to them (autophony). Conductive hearing losses may appear at any age and account for about 35% of all hearing losses.

Neurosensory hypoacusis:

A type of hearing loss caused by deterioration of the inner ear (cochlea or auditory nerve, or both) that becomes incapable of transforming sound vibrations into correct nerve impulses. The resulting effect is a distorted perception of sound. Low tones cannot be heard, while high tones are heard particularly loudly. The loss of hearing quality ranges from mild to very severe. The qualitative nature of the hearing loss hampers understanding of words in unfavourable hearing circumstances, for example in noisy environments. Neurosensory hypoacusis accounts for about 65% of the cases of hearing loss, affects both sexes and all age groups. The use of hearing aids constitutes the optimal therapy for treating this type of hypoacusis.

Mixed hypoacusis:

Whenever neurosensory hypoacusis combines with transmissive hypoacusis, the resulting disorder is defined as mixed hypoacusis.


Central hypoacusis:

The core of the auditory system is located in the brain. It may occur that sound signals that are correctly encoded and transmitted are not correctly processed by the brain. This disorder is referred to as central deafness. In this case, the audiologist's role is limited and proper diagnosis must include neurological and psychological examinations.

This form of hypoacusis occurs in a limited number of cases. In most cases, hearing loss occurs gradually making it often difficult to identify the symptoms.