An experimental study was conducted to evaluate the effectiveness of an outreach program for a group of isolated elderly clients who had been legally blind for many years. Cost efficient group therapy by phone quickly identified those person who were at risk for affective disorder and also provided information and socialization to the lonely and neglected. Implications for clinical practice suggest need for market changes in service delivery to the blind towards an emphasis on outpatient supportive intervention.
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Evans et al. (1982) studied this question.