| Average
Hearing, 500 - 2000 Hz |
Description |
Condition |
Sounds
Heard W/O Amplification |
Degree
of Disability (if not treated in first year of life) |
Probable
Needs |
| 0
- 15db |
Normal
Range |
Serous
ottis, performation, monomeric membrane, tympanosclerosis |
All
speech sounds |
None |
None |
| 15
- 25db |
Slight
hearing loss |
Serous
ottis, performation, monomeric membrane, tympanosclerosis, sensorineural
loss |
Vowel
sounds heard clearly; may miss unvoiced consonant sounds |
Mild
autitory dysfunction in language learning |
Consideration
of need for hearing aid; lip reading; auditory training, speech therapy,
preferential seating |
| 25
- 40db |
Mild
hearing loss |
Serous
ottis, performation, monomeric membrane, tympanosclerosis, sensorineural
loss |
Hears
only some louder-voiced speech sounds |
Auditory
learning dysfunction, mild language retardation, mild speech problems,
inattention |
Hearing
aids, lip reading, auditory training, speech therapy |
| 40
- 65db |
Moderate
hearing loss |
Chronic
ottis, middle ear anomaly, sensorineural loss |
Misses
most speech sounds at normal conversation levels |
Speech
problems, language retardation, learning dysfunction, inattention |
All
the above plus consideration of special classroom situation |
| 65
- 95db |
Severe
hearing loss |
Sensorineural
or mixed loss from sensorineural loss plus middle ear disease |
Hears
no speech sounds of normal conversation |
Severe
speech problems, language retardation, learning dysfunction, inattention |
All
of the above plus probable assignment to special classes |
| More
than 95db |
Profound
hearing loss |
Sensorineural
or mixed loss |
Hears
no speech or other sounds |
Severe
speech problems, language retardation, learning dysfunction, inattention |
All
of the above plus probable assignment to special classes |