The Prevalence of Visual Impairment in People with Dementia.
Award Number
11/2000/13Award Type
HS&DR Researcher LedProgramme
Health and Social Care Delivery ResearchStatus / Stage
CompletedDates
2 October 2012 -1 October 2014
Duration (calculated)
01 years 11 monthsFunder(s)
NIHRFunding Amount
£436,546.83Funder/Grant study page
NIHRContracted Centre
The College of OptometristsContracted Centre Webpage
Principal Investigator
Mr Michael BowenWHO Catergories
High quality epidemiological dataDisease Type
Dementia (Unspecified)CPEC Review Info
| Reference ID | 58 |
|---|---|
| Researcher | Reside Team |
| Published | 12/06/2023 |
Data
| Award Number | 11/2000/13 |
|---|---|
| Status / Stage | Completed |
| Start Date | 20121002 |
| End Date | 20141001 |
| Duration (calculated) | 01 years 11 months |
| Funder/Grant study page | NIHR |
| Contracted Centre | The College of Optometrists |
| Contracted Centre Webpage | |
| Funding Amount | £436,546.83 |
Abstract
The risks of developing dementia and visual impairment (VI) increase with age so a large proportion of people in the UK affected by dementia may also have VI. The ageing UK population is projected to lead to increasing prevalences of dementia and the major causes of sight loss. A literature review on VI and dementia revealed inconclusive prevalence data due to methodological differences in subjects’ age, research setting (care home residents and non residents) and definitions of VI. Much of the research is 10-30 years old and few studies were UK based. Objectives: (1) To measure the prevalence of a range of vision problems in people with dementia. (2) To compare the prevalences found in Objective 1 with published data on the general population in a comparable age range. (3) To identify and describe reasons for any under detection or inappropriate management of vision problems in people with dementia. (4) To recommend interventions to improve eye care for people with dementia and further research in this area. Plan of investigation: Stage 1 is a cross-sectional study of randomly selected people with dementia (all types) to evaluate Objectives 1 and 2. Stage 2 is a qualitative study to evaluate Objective 3. Both studies will inform Objective 4. Sample: For Stage 1, two groups of people with dementia: Group 1 = 385 living at home; Group 2 = 385 in care homes based on an estimated prevalence of 50% or more with 5% precision (95% CI). For Stage 2, 30 participants from each of the following groups: people with dementia capable of consenting to interview, eye care professionals, professional carers and family carers. Methods of data collection: Stage 1 record eye care and relevant medical history, assessment of dementia (MMSE) followed by full optometric assessment. Stage 2 one-to-one interviews (people with dementia), focus groups with carers and eye care professionals. Stage 2 – framework analysis to explore experiences of eye care, reasons for under-detection and inappropriate management of VI, and recommendations for practice and future research. Impact: This investigation is expected to have significant impact by providing an evidence base for the following areas which are currently unknown: Patients and carers – Patient satisfaction with current eye care provision for those living at home and in care homes. Providers – Prevalence and distribution of the main causes of VI in those with dementia. Recommendations to improve eye testing and vision care for people with dementia.
Aims
(1) To measure the prevalence of a range of vision problems in people with dementia. (2) To compare the prevalences found in Objective 1 with published data on the general population in a comparable age range. (3) To identify and describe reasons for any under detection or inappropriate management of vision problems in people with dementia. (4) To recommend interventions to improve eye care for people with dementia and further research in this area