Degrees of hearing loss Determining the Hearing Loss

Degrees of hearing loss

Determining the Hearing Loss § Normal HL : -10 to 20 d. B § Mild HL : -20 to 40 d. B § Moderate HL : -41 to 55 d. B § Moderately Severe HL : -56 to 70 d. B § Severe HL : -71 to 90 d. B § Profound HL : -91 d. B and above

Normal Hearing Loss �Students can detect all speech sounds even at a soft conversation level. �The student’s hearing would be plotted in the -10 to +15 d. B range on an audiogram

Mild Hearing Loss �Have minor problems in articulation in some cases �Cannot understand the messages completely If spoken softly or in a noisy environment �Students will require the use of a hearing aid or personal FM systems

Moderate Hearing Loss �Have problem in articulation �Can hear people talk within a relatively short distance �But find it difficult to listen at a low voice. �Hearing aids or personal FM systems are essential

Moderately sever Hearing Loss �Can hear people talk only within a short distance if hearing aids are available. �Rely on lip reading for communication. �Have difficulties in listening to tapes and watching TV

�Without amplification students can miss up to 100% of speech information. �Full time use of amplification is essential �They will probably require additional help in all language based subjects

Severe Hearing Loss [71 -90 d. B] �Students can only hear loud noises at close distances �Rely on lip reading for communication even with hearing aids �Delayed in speech development

Profound hearing loss �For all practical purposes these students rely on vision rather then hearing for processing information �Have immense difficulties in speech learning �So training at an early stage is very important

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