A Weighted Version of the Melbourne Low-Vision ADL Index: A Measure of Disability Impact

Johnston, Alan; Heyes, and Anthony D.

doi:10.1097/00006324-200108000-00008

Cited by 62 publications

(109 citation statements)

References 34 publications

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“…69,93,100,107 Although clinical outcomes are important, they do not necessarily reflect the abilities that the patients will show in their home environment; for example, a large discrepancy has been demonstrated between individuals with a good near VA in the clinic (75%), and those able to resolve small print at home (39%). 93 From this review, it was apparent that in the past decade there has been a drive towards assessing outcomes based on measures of ability and/or independence in performing daily tasks, 48,65,110 on measures of psychological status, 52,72,75 or on patient-reported quality-of-life. 43,70,91,115 Instruments assessing functional status may be scored entirely based on a patient's judgment of their own ability (self-report/patient-rated assessment), e.g.…”

Section: Outcome Measures For Assessing the Effectiveness Of A Sermentioning

confidence: 99%

How Effective is Low Vision Service Provision? A Systematic Review

Binns

Bunce

Dickinson

et al. 2012

Survey of Ophthalmology

204

209

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This is the unspecified version of the paper.This version of the publication may differ from the final published version. Permanent repository link Abstract.Visual impairment is a large and growing socioeconomic problem. Good evidence on rehabilitation outcomes is required to guide service development and improve the lives of people with sight loss.Of the 478 potentially relevant articles identified, only 58 studies met our liberal inclusion criteria, and of these only 7 were randomized controlled trials. Although the literature is sufficient to confirm that rehabilitation services result in improved clinical and functional ability outcomes, the effects on mood, vision-related quality of life (QoL) and health-related QoL are less clear. There are some good data on the performance of particular types of intervention, but almost no useful data about outcomes in children, those of working age and other minority groups. There were no reports on cost effectiveness. Overall, the number of well designed and adequately reported studies is pitifully small; visual rehabilitation research needs higher quality research. We highlight study design and reporting considerations and suggest a future research agenda.

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Section: Outcome Measures For Assessing the Effectiveness Of A Sermentioning

confidence: 99%

How Effective is Low Vision Service Provision? A Systematic Review

Binns

Bunce

Dickinson

et al. 2012

Survey of Ophthalmology

204

209

View full text Add to dashboard Cite

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“…Assessments of daily living activities offer diverse assessment modes: questionnaire, observation, or both [28][29][30][31][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48]. Questionnaires allow the client's perception to be included [29][30][31][33][34]38,41,44,[46][47][48][49].…”

Section: Assessment Toolsmentioning

confidence: 99%

“…But existing assessments, such as the Functional Independence Measure for Blind Adults (FIMBA) [39][40]42], the Low Vision Functional Status Evaluation [43], and the Melbourne Low-Vision Activities of Daily Living Index and its weighted version [35][36][37], have another limitation: they are not based on a conceptual framework. A conceptual framework allows the professional to group variables for a better understanding of the observed phenomenon and shows how it is interpreted [17,22,[63][64].…”

Section: Assessment Toolsmentioning

confidence: 99%

“…As mentioned in the literature review, existing assessment tools with observational and interview modes are not based on a conceptual framework of the person-environment relationship. These assessment tools fail to consider the many dimensions of the environment and the person from a client-centered point of view [35][36][37][38][39][40][41][42][43]. Because each client and each home are unique, professionals need an assessment tool based on a conceptual framework [17,[21][22][62][63].…”

Section: Terminology and Assessment Modementioning

confidence: 99%

“…Since professionals are familiar with informal interviews, the semistructured interview in the HOPE-Visual Version offers them flexibility. It covers more than the predefined items of existing instruments that use a questionnaire [35][36][37][39][40][42][43]. The client can also pinpoint activities and roles that are significant.…”

Section: Terminology and Assessment Modementioning

confidence: 99%

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Content validity of a home-based person-environment interaction assessment tool for visually impaired adults

Carignan

Rousseau²,

Gresset³

et al. 2008

JRRD

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Abstract-Home-based assessments require in-depth analyses of daily living difficulties. No assessment tool that has been validated with visually impaired adult subjects has allowed such analysis. This research adapted a home-based personenvironment interaction assessment tool designed for persons who are visually impaired. The Model of Competence, an explanatory model of the person-environment relationship, served as the conceptual framework. A qualitative study was conducted with professionals, visually impaired persons, and informal caregivers. Focus groups and semistructured individual interviews were used for data collection. The content and form had to be modified to adapt the assessment tool for use with visually impaired adults. This qualitative study documents the content validity of the Home Assessment of Person-Environment Interaction-Visual Version. The assessment tool will provide vision rehabilitation professionals better screens and explanations of handicap-created situations faced by visually impaired persons at home. By using a structured analysis based on a personenvironment theoretical model, this new assessment tool fills a scientific and clinical gap, optimizes the evaluation process, and documents the intervention plan by providing an understanding of the home context.

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A Randomized Controlled Trial to Determine the Effectiveness of Prism Spectacles for Patients With Age-Related Macular Degeneration

Smith

Dickinson²,

Cacho³

et al. 2005

Arch Ophthalmol

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To determine the effectiveness of prism spectacles in people with age-related macular degeneration by relocating the retinal image. Methods: We implemented a randomized, placebocontrolled, double-masked trial. Participants with agerelated macular degeneration received a standard lowvision assessment and the prescription of conventional low-vision aids 6 weeks before the study intervention. Participants were randomized to receive 1 of the following, including the optimal refractive correction: (1) custom, incorporating bilateral prisms to match participants' preferred power and base direction; (2) standard, incorporating standard bilateral prisms (6 prism diopters [⌬] base up for logMAR [logarithm of the minimum angle of resolution] visual acuity (VA) of 0.48-1.00 and 10⌬ base up for logMAR VA of 1.02-1.68); or (3) placebo, consisting of spectacles matched in weight and thickness to prism spectacles but without prism. Main Outcome Measures: Outcomes measured binocularly at baseline and 3-month follow-up included distance logMAR VA, reading speed, critical print size, visual functioning questionnaires, and observed visual task performance. Scores on the 25-item National Eye Institute Visual Functioning Questionnaire and the Melbourne Low-Vision ADL (Activities of Daily Living) Index were converted to linear estimates using Rasch analysis. The Manchester Low Vision Questionnaire was used to collect descriptive data. Results: A total of 225 participants completed the trial (median age, 81 years). We found no significant effect of treatment group on any of the outcome measures, including VA, the primary outcome (adjusted for baseline) (P = .63). Participants' responses to the Manchester Low Vision Questionnaire suggested that the prism spectacles added to their problems. Conclusions: Prism spectacles are no more effective than conventional spectacles for people with age-related macular degeneration.

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A Weighted Version of the Melbourne Low-Vision ADL Index: A Measure of Disability Impact

Cited by 62 publications

References 34 publications

How Effective is Low Vision Service Provision? A Systematic Review

How Effective is Low Vision Service Provision? A Systematic Review

Content validity of a home-based person-environment interaction assessment tool for visually impaired adults

A Randomized Controlled Trial to Determine the Effectiveness of Prism Spectacles for Patients With Age-Related Macular Degeneration

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