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    The functional impact of amblyopia and its associated conditions : an investigation of the potential disability associated with amblyopia and its associated conditions.

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    G.K.PANESAR_2010.pdf (7.350Mb)
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    Publication date
    2012-04-19
    Author
    Panesar, Gurvinder K.
    Supervisor
    Barrett, Brendan T.
    Pacey, Ian E.
    Buckley, John G.
    Keyword
    Amblyopia
    Strabismus
    Anisometropia
    Binocular vision
    Stereopsis
    Human movement
    Suppression
    Rights
    Creative Commons License
    The University of Bradford theses are licenced under a Creative Commons Licence.
    Institution
    University of Bradford
    Department
    School of Optometry and Vision Science
    Awarded
    2010
    
    Metadata
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    Abstract
    In the past decade, considerable attention has been paid to examination of the impact of amblyopia, and strabismus, upon the lives of the individuals. Although an extensive amount of literature exists regarding amblyopia and its associated visual defects, little is known about the contribution of the amblyopic eye in the habitual viewing condition (i.e. both eyes viewing). The purpose of these studies was to determine whether amblyopes are disadvantaged in the performance of tasks under habitual viewing conditions, highlighting any functional differences which may exist as a consequence of amblyopia. Secondly, the work aimed to investigate whether the amblyopic eye contributes to the habitual performance of these tasks. A simple light detection task, in a dichoptic arrangement based upon blue/yellow stimuli viewed through yellow filters, was used to investigate the above two aims and investigate the degree of interocular suppression in amblyopic participants. Using a 3D motion analysis system performance was assessed for an obstacle crossing task (adaptive gait) and a task of reaching for and grasping of an isolated object and in a ¿cluttered¿ environment. Fine motor skills were assessed in a threading a needle task. On the whole it was found that amblyopes are not disadvantaged under habitual viewing conditions, and in cases where differences were found to exist this appeared to be in tasks requiring speed and accuracy. Consistently across all studies it was found that the amblyopic eye contributed in a positive manner, thus, as in visual normals, two eyes are better than one.
    URI
    http://hdl.handle.net/10454/5415
    Type
    Thesis
    Qualification name
    PhD
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    Theses

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