Nearwork-induced Transient Myopia (NITM) Follwing Marked and Sustained, But Interrupted, Accommodation at Near PDF Download
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Author:
Publisher:
ISBN:
Category : Eye
Languages : en
Pages : 60
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Author:
Publisher:
ISBN:
Category : Eye
Languages : en
Pages : 60
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Author: Balamurali Vasudevan
Publisher:
ISBN:
Category : Eye
Languages : en
Pages : 390
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Author: Editha Ong
Publisher:
ISBN:
Category : Eye
Languages : en
Pages : 450
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Author: Viswanathan Sivaraman
Publisher:
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Category :
Languages : en
Pages :
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Author: Alison Alderson
Publisher:
ISBN:
Category :
Languages : en
Pages :
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This thesis has investigated nearwork-induced transient myopia and accommodation responses in relation to refractive stability, multichromatic stimuli and orthokeratology. Five individual studies have been carried out. Initially an investigation into the temporal and dioptric aspects of nearwork-induced transient myopia was undertaken, suggesting that increased task duration does not increase the level, or slow the regression of post-task NITM, however an increase in the dioptric demand of the task does. In the second study, a longitudinal myopia progression study, these findings were related to short term myopia progression. The third investigation demonstrates the feasibility of measuring the biometric correlates of nearwork-induced transient myopia using a low coherence reflectometry device (LenStar, Haag Streit Koeniz, Switzerland). Fourthly, a comparison of the differences between static and dynamic accommodative responses, microfluctuations and nearwork-induced transient myopia produced when viewing a black/white target as oppose to a red/blue target has suggested the possibility of four accommodative responses to this multichromatic stimulus. Further investigation will be necessary to investigate if any of these response types are related to myopia progression. 2 The final study investigates the effect of two different designs of orthokeratology contact lenses (C5 and polynomial) on visual function. It appears to be the case that although the polynomial lens design has a larger refractive effect than the C5 lens it reduces both high and low contrast corrected visual acuity to a greater extent. The higher the baseline mean spherical equivalent refractive error the larger the detrimental effect.
Author: D. L. Ehrlich
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Mark Rosenfield
Publisher: Butterworth-Heinemann Medical
ISBN: 9780750637848
Category : Medical
Languages : en
Pages : 220
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This book combines theory, practice and research into the field in one complete volume.
Author: Klaus Schmid
Publisher:
ISBN: 9781589612716
Category : Literary Criticism
Languages : en
Pages : 276
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Book Description
Unbiased summary of the literature about myopia, some ideas about linkages between the various published results, and recommendations for shortsighted people and people who don't want to become shortsighted at all.
Author: Editha Ong
Publisher: Optometric Extension Program Foundation
ISBN: 9780943599885
Category : Medical
Languages : en
Pages : 211
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Book Description
Comprehensive discussion of the research and theoretical modeling behind the long-standing question about the relationship between the accommodative/convergence systems, their primary function in nearwork, and possible etiologies of myopia. Provides a review of the various components of accommodation. This review, an update on the status of current research on the neurophysiology, including the neuro pharmacology of accommodation, is followed by a complete discussion of the various components of accommodation and the relationship to various refractive groups. Core to the book is a thorough discussion of nearwork-induced myopia, presenting a balanced discussion of the various theoretical models of myopia.
Author: Helga Kolb
Publisher:
ISBN:
Category :
Languages : en
Pages :
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