Visual Impairment: The Use of Visual Profiles in Evaluations of Icon Use in Computer-Based Tasks

Jacko, Julie A.; Rosa, Robert H.; Pappas, Charles J.; Dixon, Max A.

doi:10.1207/s15327590ijhc1201_7

Cited by 29 publications

(15 citation statements)

References 12 publications

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“…Due to these problems, guidelines must be very precisely specified for a particular user group (see the research done by Jacko et al [89][90][91] in their work on elderly lowvision adults and the specification of visual profiles), or very general guidelines must be specified.…”

Section: Tactile Presentation Of Graphicsmentioning

confidence: 99%

Accessible presentation of information for people with visual disabilities

Power

Jürgensen

2009

Univ Access Inf Soc

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Personal computers, palm top computers, media players and cell phones provide instant access to information from around the world. There are a wide variety of options available to make that information available to people with visual disabilities, so many that choosing one for use in any given context can often feel daunting to someone new to the field of accessibility. This paper reviews tools and techniques for the presentation of textual, graphic, mathematic and web documents through audio and haptic modalities to people with visual disabilities.

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Section: Tactile Presentation Of Graphicsmentioning

confidence: 99%

Accessible presentation of information for people with visual disabilities

Power

Jürgensen

2009

Univ Access Inf Soc

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“…Prior investigations have demonstrated that this is an optimal icon size for individuals possessing a range of visual abilities, without sacrificing unrealistic amounts of screen space. 3 Subjects were asked to select the file icon and drag it to a target folder icon and release the file "into" the folder. A single Microsoft ® Word file icon was located in the bottom center of the computer screen, and a single Microsoft ® Windows target folder icon was located randomly in one of fifteen discrete locations in the task space.…”

Section: Methodsmentioning

confidence: 99%

The Impact of Auditory and Haptic Feedback on Computer Task Performance in Patients With Age-Related Macular Degeneration and Control Subjects With No Known Ocular Disease

Jacko

Sainfort

Leonard

et al. 2006

Retina

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“…Second, while visual acuity can be indicative of AMD, several clinically based ophthalmic studies have deliberately excluded visual acuity in grading AMD severity (Bird et al 1995). Jacko and colleagues , Jacko 2000 identified several visual factors that influence performance during visual search for an icon, including visual acuity, contrast sensitivity, and visual field. In consideration of the great number of measures taken to profile the various phases of the interaction, both implicit and explicit, regression provides a more suitable means by which to compare the relative influence of the various independent variables in relation to each other.…”

Section: Performance Analysesmentioning

confidence: 99%

An investigation of handheld device use by older adults with age-related macular degeneration

Leonard¹,

Jacko

Pizzimenti

2006

Behaviour & Information Technology

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This study investigates factors affecting handheld human -computer interaction (HCI) for older adults with Age-related Macular Degeneration (AMD). This is largely an uncharted territory, as empirical investigations of HCI concerning users with visual dysfunction and/or older adults have focused primarily on desktop computers. For this study, participants with AMD and visually healthy controls used a handheld computer to search, select and manipulate familiar playing card icons under varied icon set sizes, intericon spacing and auditory feedback conditions. While all participants demonstrated a high rate of task completion, linear regression revealed several relationships between task efficiency and the interface, user characteristics and ocular factors. Two ocular measures, severity of AMD and contrast sensitivity, were found to be highly predictive of efficiency. The outcomes of this work reveal that users with visual impairments can effectively interact with graphical user interfaces on small displays in the presence of low-cost, easily implemented design interventions. Furthermore, results demonstrate that the detrimental influence of AMD and contrast sensitivity on handheld technology interaction can be offset by such interventions. This study presents a rich data set and is intended to inspire future work characterizing and modeling the interactions of individuals with visual impairments with non-traditional information technology platforms and contexts.

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Visual Impairment: The Use of Visual Profiles in Evaluations of Icon Use in Computer-Based Tasks

Cited by 29 publications

References 12 publications

Accessible presentation of information for people with visual disabilities

Accessible presentation of information for people with visual disabilities

The Impact of Auditory and Haptic Feedback on Computer Task Performance in Patients With Age-Related Macular Degeneration and Control Subjects With No Known Ocular Disease

An investigation of handheld device use by older adults with age-related macular degeneration

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