2. Hearing Impairments

3. Measuring hearing: the audiogram
-air versus bone conduction

4. Deficits of up to 15 dB are ignored

5. 1. Conductive deafness
-otosclerosis
-otitis media
-cholestatoma

6. 1. Conductive deafness
-otosclerosis
-otitis media
-cholestatoma
(Meniere’s disease)

7. 2. Nerve deafness (sensorineural hearing loss)
-Presbycusis
(auditory example)

8. 2. Nerve deafness (sensorineural hearing loss)
-Presbycusis
-Tinnitus
(auditory example)

9. 2. Nerve deafness (sensorineural hearing loss)
-Presbycusis
-Tinnitus
-loudness recruitment
-pathological adaptation

10. Completely-in-canal (CIC)

11. In-the-canal (ITC)

12. In-the-ear (ITE)

13. Behind-the-ear (BTE)

14. Body Aids

15. Bone-Conducting Aid

16. Bone Anchored hearing aid

17. Cochlear Implant