Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 81 for “"vision loss"”.
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Impact of Central Vision Loss on Eye Movements and Time-to-Contact Judgments
… movements differ between individuals with normal vision and individuals with central vision loss during navigation tasks. However, no study has investigated eye movement differences between individuals with normal vision and individuals with central vision loss in a TTC task. The current study …
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Predicting Vision Loss In Healthy Aging With Manganese-Enhanced Mri Of The Rat Eye
… we found no evidence of retinal volume loss, and found that changes in retinal volume were not correlated with changes in visual function -- suggesting that age-related vision declines cannot be explained by neuron loss. In summary, our longitudinal studies identify two …
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A PHENOMENOLOGICAL INQUIRY INTO VISION LOSS: INVESTIGATING THE LIVED EXPERIENCES OF ADVENTITIOUSLY BLINDED ADULTS
… regarding the events surrounding their vision loss. The researcher used a descriptive phenomenological method to analyze the results. </p> <p> Through analysis, seven themes emerged as essential experiences for experiencing adventitious vision loss: Medical Dysfunction, Others’ …
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Credibility of a Person-Centered Design Decision-making Prototype: Spaces for Older Persons with Vision Loss
… their visual needs in mind. As their field of vision decreases, people find it harder to identify an objects location, distance, and orientation. Elderly people with vision impairments usually find it harder to perform daily activities such as navigation through indoor spaces. Functional vision …
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Total and Disease Specific Resource Use and Healthcare Cost of Patients with Glaucoma
… with a few studies also reporting outcomes as vision loss worsens, but few have included drug claims. The primary objective of this study was to characterize the overall and disease-related healthcare resource use, including drug utilization, and cost associated with treatment and care provided …
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Investigating quality of life in inherited optic neuropathies: Evaluating patient experiences and outcome measures
… of this study was to investigate the impact of vision loss on the quality of life (QoL) of people with IONs and evaluate the patient-reported outcome measures (PROMs) used to capture their experiences. The hypothesis of this study was that pre-existing PROMs were inadequate for capturing the …
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The Impact of Genetic Disease on the Family: Examining the Relationship Between Psychological Well-Being, Social Support, and Spirituality in Unaffected Carriers of Leber’s Hereditary Optic Neuropathy
… of mothers and siblings of an individual with vision loss symptoms due to Leber’s Hereditary Optic Neuropathy and whether perceived social support and spiritual involvement and beliefs served as protective factors as these family members coped with their child or sibling acquiring a disability. …
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Improving face perception and quality of life in age-related macular degeneration
… a progressive eye condition that damages central vision required to see faces clearly. This thesis aims to investigate potential means to improve quality of life in AMD, via a two-pronged approach. The first prong examines the importance of face recognition difficulties, using a qualitative study …
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Improving face perception and quality of life in age-related macular degeneration
… a progressive eye condition that damages central vision required to see faces clearly. This thesis aims to investigate potential means to improve quality of life in AMD, via a two-pronged approach. The first prong examines the importance of face recognition difficulties, using a qualitative study …
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Design beyond the eyes: a web-based tool for designers working with people with visual needs
… more people with physical conditions including vision loss. Every person with visual needs has different lived experiences considering their living condition, vision condition, and how long they have been living with vision loss or no vision. There is a gap between the needs of adults …
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Cell penetrating peptide for ocular drug delivery
… (AMD) is the leading cause of irreversible vision loss in the ageing population of the developed world. Choroidal neovascularisation (CNV), the hallmark of neovascular AMD, results in the loss of sharp central vision due to breakdown of the blood retinal barrier (BRB), unregulated blood …
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Identifying the Preferred Retinal Locus for Reading
People with central vision loss (CVL) often adopt a specific retinal location, known as the preferred retinal locus (PRL), outside of the region of loss to fixate targets in the visual field. The PRL is most often measured using simple fixation tasks. It has been reported that this location on the …
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Retinal Ischemia in the In Vivo Rodent: Cellular and Vascular Characteristics
… vessel occlusion is among the leading causes of vision loss. The functional and cellular effects of acute loss of blood flow have not been investigated fully, and current treatments only address secondary complications of ischemic damage. This work has developed new tools with which to …
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Behavioural and Emotional Correlates of Age-Related Visual Decline : Contextual and Self-Regulation Perspectives
… older adults with normal age-related changes in vision by the majority, but also included cases with excellent vision as well as cases of severe vision loss. Finally, study 6 employed two cohorts of middle-aged and older visually intact adults. Overall, findings from the presented studies show …
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Functional analysis of A 5' untranslated variant in rhodopsin : implications for the retinitis pigmentosa phenotype
… include night blindness and gradual peripheral vision loss, which progresses to a complete loss of vision. Clinical, phenotypic and genetic heterogeneity are frequently observed in RP. Mutations in Rhodopsin (RHO) have been identified as a major cause of RP. A sequence variant identified in the …
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Influence of retinal states on the development and maintenance of retinofugal projections
<p>Vision provides a critical interface with the physical world. This work examines visual development and vision loss in mice to glean the influence of the retinal state on visual connections. I first assessed the impact of retinal activity on the eye-specific segregation of retinal afferents in …
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An investigation of the variables related to competitive employment and earnings of vocational rehabilitation consumers with blindness or visual impairments
… the relationships among demographics, service provisions, competitive employment, and earnings of vocational rehabilitation consumers with blindness or visual impairments. Using a sample of 3,610 cases from the RSA-911 data file from Fiscal Year 2006, logistic regression was utilized to examine …
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A user-centred design framework for context-aware computing
… landmarks to navigate by people with a central vision loss, people with a peripheral vision loss, and registered blind people. Secondly, the 'application's context' involved designing context-aware services for transmission to participants within indoor and outdoor routes. Thirdly, the …
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Exploration of the impact of genetic counselling and patient support group involvement on retinal degenerative disorders (RDD) patients: a qualitative study
… extract information about their experiences with vision loss including but not exclusively, concerning participants knowledge about their condition, ability to make decisions and their adaptation experiences. Interviews were audio recorded, transcribed verbatim and a reiterative thematic analysis …
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Stargardt patient experiences in the first gene-based clinical trial for an inherited retinal condition in South Africa
… condition that causes progressive central vision loss, typically beginning in late childhood or early adulthood. This vision loss is due to a build-up of lipofuscin in the macula, a part of the retina responsible for sharp central vision. Stargardt disease follows an autosomal recessive …
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