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.
There are many possible medical variables of hearing loss and thus, the exact type
and degree of loss must be considered.
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).