EFFECTS OF HEARING LOSS

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I. Tools to Quantify Hearing Loss

A. Anatomy

B. Audiometer

C. Tympanometer

D. dB HL/dB SPL

II. Ways to Describe Hearing Loss (table 1.1;  table 1.2; table 1.3)

A. Severity

1. Mild 16-40 dB HL

2. Moderate 41-55 dB HL

3. Mod-Severe 56-70 dB HL

4. Severe 71-90 dB HL

5. Profound 91 + dB HL

B. Configuration

1. Flat

2. Sloping

3. Reverse Slope

4. Cookie Bite

C. Types

1. Conductive

2. Sensori-neural

3. Mixed

III. Main Effects of Hearing Loss 

A. Reduction in Absolute Sensitivity

B. Reduction in Differential Sensitivity

IV. Secondary Effects of Hearing Loss

A. Reduced auditory information affects

1. Emotional withdrawal/depression

2. Transportation/safety

3. Education

4. Independence

5. Employment

6. Telephone conversations

7. Church social encounters

8. Self esteem/confidence

9. Familyfriends realtions

10. Recreatione/entertainment

B. Factors which influence the degree to which secondary effects are experienced. 

1. Age

2. Onset of HL

3. Progression of HL

4. Degree, type, configuration of HL

5. Symmetry of HL

6. Other handicapping conditions

7. Personality

8. Support system

9. Age of amplification

10. Use of amplification

12. Communication demands

11. Hearing status of family

13. Socio-economic status

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