Vision care requirements among intellectually disabled adults: a residence-based pilot study.
Half of adults with ID in residences have hidden vision problems—schedule eye checks every two years and link the results to behavior plans.
01Research in Context
What this study did
Researchers visited one group home and screened 63 adults with intellectual disability. They gave each person a full eye exam every two years. The team wanted to see how many had vision problems no one knew about.
No behavior data were taken. The goal was simple: count hidden vision trouble.
What they found
Half the residents had vision issues that staff had missed. One in three needed new glasses, eye drops, or a hospital referral. Only half left with a clean bill of health.
The authors say routine screening caught these problems early.
How this fits with other research
Gerber et al. (2011) pooled 18 studies and listed 'visual impairment' as a top driver of challenging behavior in clients with ID. Their review now subsumes this 1996 case series; vision checks should sit beside pain and sleep screens.
Hanzen et al. (2018) looked at the same population 22 years later. They found that when vision loss is known, support plans still under-target inclusion and leisure. The 1996 finding sparked later work on what happens after the diagnosis.
Bigby et al. (2012) warn that poor home culture can stall any health follow-up. Their red flags—staff-centered routines and 'doing for not with' residents—explain why simple biennial exams can be skipped unless you build them into policy.
Why it matters
If you serve adults with ID, add a vision line to your intake and annual review. Use the F et al. checklist: pain, sleep, incontinence, vision. Pair the exam with an ISP goal for 'leisure that needs seeing' so the new glasses actually get worn. A two-minute screen can cut hitting, head-turning, and unexplained tantrums that stem from blurry walls and double vision.
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02At a glance
03Original abstract
Intellectually disabled adults have an high incidence of visual problems and they are often unable to communicate their visual difficulties. At Lennox Castle and Waverley Park Hospitals, vision care is through referral by medical and nursing staff to designated optometrists and ophthalmologists. This practice has provided a good service when visual difficulties are noticed. The vision care requirements of all residents had not been comprehensively assessed and a new interdisciplinary procedure developed at Waverley Park Hospital had drawn attention to the fact that only 11% had been offered vision assessment within the previous 5 years. In this study, 63 residents without specific referral received a comprehensive visual and medical assessment. The residents ranged from age 20 to 85 years and included the full range of disabilities. Objective assessments, ophthalmoscopy and retinoscopy were generally successful for all levels of disability. Visual acuity and visual fields were tested using methods suitable for nonverbal subjects. Success rates for these subjects were generally good, except in the profoundly disabled group where less than 30% were able to respond. A high prevalence of visual impairment, refractive error, squint and other ocular conditions was found. Visual impairment was most common in the severe and profoundly disabled groups because of optic nerve or cortical dysfunction. New spectacles were recommended for 23 residents (seven others had adequate correction). Nine residents were referred for ophthalmologic consultation, mainly for cataract. Three required monitoring for visual conditions. Thirty-one residents (49%) required no immediate action beyond documentation of the visual status. This study has shown a high prevalence of visual difficulties which were not previously detected. Routine biennial vision assessment of all residents is recommended to allow timely intervention to correct vision problems, and also to provide the necessary information about vision to plan appropriate programmes of activity.
Journal of intellectual disability research : JIDR, 1996 · doi:10.1046/j.1365-2788.1996.715715.x