hearing handicap unilateral loss

[DAVID H. LEWIS]

I have bbeen requested by our state vocational rehabilitation dept to 
justify their provision for services to a patient with a unilateral 
hearing loss (no response in bad ear, ess. normal hrng good ear). He 
doesn't meet their standard requirements given one normal ear.  They 
are interested in some type of documentation of handicapping effect of 
unilateral loss...we have talked about poorer speech discrim in noise, 
etc but they want a more firm "degree of handicap".  Any references or 
prior similar experiences would be helpful....thanks!

Mary Lewis, M.A. CCC, FAAA