The Ocular Circulation
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The Ocular Circulation
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Author : Jeffrey W. Kiel
language : en
Publisher: Morgan & Claypool Publishers
Release Date : 2011
The Ocular Circulation written by Jeffrey W. Kiel and has been published by Morgan & Claypool Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Medical categories.
This presentation describes the unique anatomy and physiology of the vascular beds that serve the eye. The needs for an unobstructed light path from the cornea to the retina and a relatively fixed corneal curvature and distance between refractive structures pose significant challenges for the vasculature to provide nutrients and remove metabolic waste. To meet these needs, the ocular vascular beds are confined to the periphery of the posterior two thirds of the eye and a surrogate circulation provides a continuous flow of aqueous humor to nourish the avascular cornea, lens and vitreous compartment. The production of aqueous humor (and its ease of egress from the eye) also generates the intraocular pressure (IOP), which maintains the shape of the eye. However, the IOP also exerts a compressing force on the ocular blood vessels that is higher than elsewhere in the body. This is particularly true for the intraocular veins, which must have a pressure higher than IOP to remain patent, and so the IOP is the effective venous pressure for the intraocular vascular beds. Consequently, the ocular circulation operates at a lower perfusion pressure gradient than elsewhere in the body and is more at risk for ischemic damage when faced with low arterial pressure, particularly if IOP is elevated. This risk and the specialized tissues of the eye give rise to the fascinating physiology of the ocular circulations. Table of Contents: Introduction / Anatomy / Blood flow measuring techniques / Ocular perfusion pressure, IOP and the ocular Starling resistor effect / Ocular blood flow effects on IOP / Local control of ocular blood flow / Neural control of ocular blood flow / Summary
The Ocular Circulation
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Author : Sir John Herbert Parsons
language : en
Publisher:
Release Date : 1903
The Ocular Circulation written by Sir John Herbert Parsons and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1903 with Blood categories.
Ocular Blood Flow In Glaucoma
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Author : Robert N. Weinreb
language : en
Publisher: Kugler Publications
Release Date : 2009
Ocular Blood Flow In Glaucoma written by Robert N. Weinreb and has been published by Kugler Publications this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Glaucoma categories.
This is the sixth World Glaucoma Association Consensus. The relationship between ocular blood flow and glaucoma has been discussed for more than a century, and still it uniformly fuels debates at glaucoma meetings throughout the world. Clearly, the results of this report will have broad and significant impact on glaucoma research and clinical practice. The global faculty, consisting of leading authorities on the scientific and clinical aspects of ocular blood flow, have met in Fort Lauderdale on May 2, 2009 to discuss the reports and refine the consensus statements.
Ocular Blood Flow
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Author : Leopold Schmetterer
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-06-14
Ocular Blood Flow written by Leopold Schmetterer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-06-14 with Medical categories.
Adequate blood supply to the eye is an important prerequisite for normal visual function. Over the past 40 years our knowledge of ocular blood flow regulation has improved significantly. This reader-friendly textbook provides a comprehensive overview of the current knowledge of ocular blood flow. Lavishly illustrated, it evaluates the wide array of methods that have been used to measure ocular blood flow. Furthermore, it not only offers the reader an evidence-based summary of the physiological and pharmacological properties of ocular blood flow regulation, but also demonstrates the ocular blood flow abnormalities in different vascular diseases. This book will enhance the understanding of all who are interested in learning more about ocular blood flow in health and disease.
The William Mackenzie Centenary Symposium On The Ocular Circulation In Health And Disease
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Author : James Stanley Cant
language : en
Publisher:
Release Date : 1969
The William Mackenzie Centenary Symposium On The Ocular Circulation In Health And Disease written by James Stanley Cant and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Medical categories.
Ocular Circulation And Neovascularization
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Author : D Benezra
language : en
Publisher:
Release Date : 1987-06-30
Ocular Circulation And Neovascularization written by D Benezra and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987-06-30 with categories.
Atlas Of Ocular Blood Flow
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Author : Alon Harris
language : en
Publisher: Butterworth-Heinemann
Release Date : 2003
Atlas Of Ocular Blood Flow written by Alon Harris and has been published by Butterworth-Heinemann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Medical categories.
This text examines the vascular anatomy and physiology of the eye as well as the assessment of ocular circulation in health and disease. It offers a cutting-edge analysis of the eye's blood supply and how it is affected by conditions such as glaucoma, age-related macular degeneration, and diabetic retinopathy. 425 illustrations -- including 250 in full color -- detail anatomy, techniques, the results of imaging studies, and more. Provides a cutting-edge analysis of the eye's blood supply and how it is affected by conditions such as glaucoma, age-related macular degeneration, and diabetic retinopathy. Describes the latest noninvasive methods for measuring blood flow, and explains how to use this advanced technology to evaluate patients. Features more than 435 illustrations-over 345 in full color-that richly depict anatomy, techniques, imaging findings, and more. Offers the expertise of authors who have been involved extensively in the design and clinical application of new technologies for the assessment of ocular circulation.
The Ocular Circulation In Health And Disease
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Author : James S. Cant
language : en
Publisher:
Release Date : 1969
The Ocular Circulation In Health And Disease written by James S. Cant and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with categories.
Ocular Blood Flow
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Author : Hedwig J. Kaiser
language : en
Publisher: Karger Medical and Scientific Publishers
Release Date : 1996-01-01
Ocular Blood Flow written by Hedwig J. Kaiser and has been published by Karger Medical and Scientific Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-01-01 with Medical categories.
This book is a synopsis of up-to-date knowledge on the quantification of ocular blood perfusion and originates from expert lectures held at the 1995 Glaucoma Meeting in Switzerland. In the first section, a profound overview of the anatomy, physiology and pathophysiology of ocular perfusion enables the reader to gain distinct new insights into the pathogenesis of ocular diseases. The second part of the publication describes the different measuring methods that are currently applied in clinical practice and in research. It has been written by a team of leading researchers with the aim of bringing their findings to the attention of those working directly with patients, in particular the ophthalmologist in the clinic or private practice.
The Retinal Circulation
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Author : George N. Wise
language : en
Publisher: HarperCollins Publishers
Release Date : 1971
The Retinal Circulation written by George N. Wise and has been published by HarperCollins Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Medical categories.