Hearing impairment is categorized into 5 levels: mild, moderate, moderately severe, severe, and very severe. A speech frequency hearing threshold of 60 decibels is considered moderately severe deafness, which is a more severe form of hearing loss. The exact frequency band in which the hearing is impaired should be determined from the audiogram.
The horizontal coordinate of the audiogram indicates the frequency in Hertz; the vertical coordinate indicates the sound intensity level in decibels. The pure tones of the audiogram are divided into three frequency bands: low, medium and high. The horizontal coordinate below 250 Hz is the low frequency band, 500 to 2000 Hz is the middle frequency band, and above 4000 Hz is the high frequency band.
If the drop point of 60 decibels is located in the low-frequency band, it is low-frequency moderate-to-severe deafness; if the drop point of 60 decibels is located in the middle-frequency band, it is middle-frequency moderate-to-severe deafness; if the drop point of 60 decibels is located in the high-frequency band, it is high-frequency moderate-to-severe deafness.
The emergence of discomfort in time to seek medical attention, to clarify the cause of the disease, under the guidance of the doctor to choose the drug treatment.