ABSTRACT. Objective. Key worker programs for families of children with disabilities, to promote information provision, emotional support, and liaisons among different agencies, have long been advocated but not extensively implemented. We report the impact on the experiences of parents and the practices of health care professionals of a novel, hospital-based, key worker service (Community Link Team [CLT]), implemented in the pediatric ophthalmology department of Great Ormond Street Hospital (London, United Kingdom).Design, Setting, and Participants. The CLT included 2 members, 1 of whom was present during the first outpatient assessment by the consultant ophthalmologist of any child newly diagnosed as visually impaired (corrected acuity of 6/18 or worse in the better eye) and accompanied the family during other assessments performed during that visit. A dedicated room was used by the CLT members to spend time with each family after completion of the clinical assessments. The CLT members reiterated and/or clarified clinical information already provided, specifically advised the families about visual stimulation programs and the benefits and purpose of visual impairment certification, and provided information about educational and social services. The same CLT member met the family at subsequent visits to the department and acted as the first point of contact for parents. Parents of children newly diagnosed with visual impairment and/or ophthalmic disorders at Great Ormond Street Hospital participated in a 2-stage study to assess their needs, their views about the processes of care, and their overall satisfaction. The study included a questionnaire survey with 2 standard instruments, ie, the Measure of Processes of Care, specifically developed and used to assess parents' views of the degree to which health services for a range of childhood disorders are family-centered, and the short form of the Client Satisfaction Questionnaire, used to assess overall parental satisfaction or dissatisfaction with services in the preceding year, as in other studies of parental satisfaction with pediatric services. This was followed by in-depth individual interviews with a subsample of parents who returned completed questionnaires. The views of families with experience with the new service (CLT) were compared with those without. The experiences of health care professionals before and after implementation of the service were elicited through group interviews and were compared. We recognized that any differences would be attributable to both the direct effects of the CLT, ie, actual services provided by the team, and indirect effects, ie, broader changes in approaches or practices within the department resulting from shifting roles and responsibilities regarding specific elements of management. Therefore, both the specific tasks/activities undertaken by the CLT and broader changes in practices within the department were identified.Results. Seventy-nine families from the pre-CLT group and 68 from the post-CLT group (68% and 65% of thos...