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a.
The inability to hear, because it vitally affects communication, may (depending upon
the extent of hearing loss) significantly impinge on all range(s) of work.
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b.
There are many possible medical variables of hearing loss, and thus, the exact type
and degree of loss must be considered.
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c.
The overall impact of a hearing loss (or a degree of hearing loss) also depends upon
the type of occupations being considered.
EXAMPLE: Certain degrees of hearing loss may preclude the performance of some occupations
that require good hearing (e.g., bus driver) without precluding the performance of
other occupations (e.g., printing press operator).