Visual and Hearing Impairments and their Impact on the Mental Health of Adults with Intellectual Disability
Visual and hearing impairments, congenital or acquired, are much more common in people with intellectual disability (ID) than the general population. These can be missed or diagnosed with delay if professionals rely just on the subjective reports by the families/care givers rather than objective screening and assessment. People with ID might be unable to complain about a visual or hearing impairment due to their communication difficulties. Therefore, diagnostic overshadowing might occur whereby these conditions might present with atypical signs and symptoms (e.g. loss of skills, isolation, and challenging behaviours) which could be attributed to dementia, depression, or other mental health problems. There has also been an overrepresentation of autistic-like features and autism spectrum disorder reported in people with visual and hearing impairment. Raising awareness of these comorbidities in people with ID will therefore facilitate early diagnosis and implementation of appropriate management strategies that can improve service provision for this vulnerable population.