Hearing Test

PURE TONE AUDIOMETRY (PTA)

It is a hearing test used to determine the presence or absence of hearing loss. If hearing loss is present, the audiologist will be able to determine both type and degree of hearing loss. Each ear will be tested individually. This information is critical to determine if medical or surgical intervention is possible or if hearing aids may help

Impedance Audiometry

Tympanometry allows the audiologist to measure how well the eardrum is vibrating when sound strikes and how well the tiny bones of the ear are functioning to transmit those vibrations to the organ of hearing. It also measures the pressure in the space behind the eardrum that contains those bones. For tympanometry, a soft rubbery tip is inserted in the ear and the pressure in the ear canal is changed, resulting in a feeling like going up in an airplane.

Special Test

Tone Decay Test (TDT)

The tone decay test (also known as the threshold tone decay test or TTDT) is used to detect and measure auditory fatigue.

In people with normal hearing, a tone whose intensity is only slightly above their absolute threshold of hearing can be heard continuously for 60 seconds. The tone decay test produces a measure of the “decibels of decay”, i.e. the number of decibelsabove the patient’s absolute threshold of hearing that are required for the tone to be heard for 60 seconds. A decay of between 15 and 20 decibels is indicative of cochlear hearing loss and the decay more than 25 decibels is indicative of damage to the vestibulocochlear nerve.

SHORT INCREMENT SENSITIVITY INDEX TEST (SISI)

The SISI test is still widely used to determine cochlear pathology in patients. This test is based on a phenomenon known as recruitment (abnormal loudness growth).

Oto Acoustic Emission (OAE)

The OAE test is performed on patients from new born to nay age but is often part of a newborn hearing screening program.

New Born Hearing Screening

As a part of our extension services, we undertake hearing screening for new-born children in co-ordination with different local hospitals in Delhi. This is done with the motto "early identification promotes early intervention". Early intervention further promotes better speech and language abilities of a child born with hearing impairment.

Similar to new born screening, we also undertake hearing screenings at different industries to ensure that the noise present in the industries do not lead to any permanent hearing damage to the employees. We also give detailed counseling regarding the ways to protect hearing when such noisy environments are a part of the employee's daily work routine. We also provide ear protective devices to the employees who are evaluated to be susceptible or in need of hearing protection.

Brain Stem Evoked Response Audiometry (Bera / ABR)

It is used on newborn to adults for hearing screening, auditory threshold estimation, intra-operative monitoring, determining hearing loss type and degree, and auditory nerve and brainstem lesion detection.

Auditory Steady-State Response (ASSR)

are objective ways of determining the degree and type of hearing loss and also in differential diagnosis of different hearing disorders. They assess the ability of the auditory nerve and beyond to respond faithfully to the sound heard. They are often used in the hearing assessment of new-borns and infants as they do not require the child to respond to the sounds.
"He can hear the sound but cannot understand anything that he hears."
Another advantage is the fact that these tests can be performed even when the child is asleep. ASSRs can further be used to objectively deduce an audiogram based on the presence or absence of responses at different frequencies.

Hearing aid maintenance

A digital hearing aid is an electronic device that amplifies sound and is worn to compensate for poor hearing. A hearing aid is a battery-powered, electronic device that makes listening easier for people with a hearing loss. Digital Hearing Aid consists of an Amplifier, Processors, specialized Microphones, and prescribed Receivers which is programmed by different software’s accordingly.

Ear Mould Services

It is most important to clean your earmould and change the tubing regularly, otherwise the quality of sound from your hearing aid will be poor. If the tube becomes blocked your hearing aid may appear to stop working altogether.