Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Diagnosing Early Glaucoma With Nerve Fiber Layer Examination
Download Diagnosing Early Glaucoma With Nerve Fiber Layer Examination full books in PDF, epub, and Kindle. Read online Diagnosing Early Glaucoma With Nerve Fiber Layer Examination ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Diagnosing Early Glaucoma with Nerve Fiber Layer Examination by : Harry A. Quigley
Download or read book Diagnosing Early Glaucoma with Nerve Fiber Layer Examination written by Harry A. Quigley and published by Igaku-Shoin Medical Publishers. This book was released on 1996 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Glaucoma Diagnosis Structure and Function by : Robert N. Weinreb
Download or read book Glaucoma Diagnosis Structure and Function written by Robert N. Weinreb and published by Kugler Publications. This book was released on 2004 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: To the best of our knowledge, the 1st Global AIGS Consensus Meeting on ""Structure and Function in the Management of Glaucoma"" was also the first global consensus meeting in ophthalmology. The goal was to reach an evidence-based consensus for both clinical practice and research through the use of information obtained from peer-reviewed literature describing functional and structural diagnostic testing in glaucoma. The faculty and review group consisted of leading global authorities on glaucoma diagnostic testing. The preparation for the Consensus was unique in its format (see page xii). Repor.
Book Synopsis Fast Facts: Glaucoma by : Paul R. Healey
Download or read book Fast Facts: Glaucoma written by Paul R. Healey and published by Karger Medical and Scientific Publishers. This book was released on 2010-01-01 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: Glaucoma is the most common neurodegenerative disease and the second most common cause of blindness worldwide after cataract. While the diagnosis of end-stage glaucoma can be made by any physician trained in the use of the ophthalmoscope, it is preferable to diagnose glaucoma at an early stage, when intervention can alter the course of the disease and change the prognosis. Packed with superb illustrations, 'Fast Facts: Glaucoma' is bursting with practical information on the disease, including: • A concise overview of the glaucoma subtypes and their global prevalence • A clear explanation of the pathophysiology alongside what the patient actually experiences • The questions to ask when taking a history • The key elements of a comprehensive eye examination • How to minimize the impact of the disease on the patient and reduce risk factors • The latest medical and surgical treatments • Monitoring of the condition - including detail of follow-up examinations 'Fast Facts: Glaucoma' is a highly readable practical reference for all medical and eyecare practitioners, an aid for students and scientists involved in the study of eye disease and a sound overview for anyone interested in this challenging disease. What is Glaucoma? How can it be detected? How can it be treated? 'Fast Facts: Glaucoma' answers all of these questions. Contents: • Definitions and epidemiology • Pathophysiology, natural history and prognosis • Diagnosis and clinical features • Principles of management • Medical treatment • Laser and surgical treatment • Monitoring • Prevention • Useful resources
Book Synopsis Biophysical Properties in Glaucoma by : Ingrida Januleviciene
Download or read book Biophysical Properties in Glaucoma written by Ingrida Januleviciene and published by Springer. This book was released on 2019-01-31 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview on new insights in glaucoma, the latest technological developments, scientific achievements, and novel research leading to new paradigms in glaucoma diagnosis. Readers will discover a broad picture starting from theoretical perspectives in diagnostic criteria followed by practical examination and clinical interpretations while highlighting potential pitfalls and limitations in analysis. Non-invasive, modern technologies allowing visualization and quantification of various parts of the human eye are fast evolving and improving interpretation of modern diagnostic possibilities are essential to fill the gap between sophisticated equipment, complex clinical data, and the need for precision-medicine based interpretation. Issues such as the importance of intraocular, intracranial, and ocular perfusion pressures (IOP, ICP, OPP) in the pathogenesis of glaucoma; and imaging modalities for examination of the optic nerve head, retinal fiber layer, and visual field assessment in glaucoma are explored in these chapters. The problem-based learning approach presented herein offers a succinct go-to-guide to read and discover answers.
Book Synopsis Optical Coherence Tomography in Current Glaucoma Practice by : Digvijay Singh
Download or read book Optical Coherence Tomography in Current Glaucoma Practice written by Digvijay Singh and published by JP Medical Ltd. This book was released on 2014-05-30 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Glaucoma is a condition of the eye in which the optic nerve is damaged due to increased fluid pressure in the eye. Left untreated, the condition may lead to permanent blindness. Optical coherence tomography (OCT) is a non-invasive imaging test that uses light waves to take cross-section pictures of the retina, the light-sensitive tissue lining the back of the eye (geteyesmart.org). OCT is commonly used in the evaluation of patients with glaucoma. This manual is a concise guide to the use of OCT for the diagnosis of glaucoma. Beginning with an introduction to OCT, the book then provides in depth discussion on its use in glaucoma. Each of the following chapters describes the use of OCT for analysing associated parts of the eye, including the optic nerve, retinal nerve and ganglion cell, as well as macular and anterior segment OCT. The advantages and common pitfalls in OCT imaging and its interpretation are discussed at length. Key points Concise guide to OCT for diagnosis and evaluation of glaucoma Explains use of OCT for analysis of associated parts of the eye In depth discussion of advantages and common pitfalls in OCT imaging Includes more than 115 images and illustrations
Book Synopsis Structure and Function in Early Glaucoma by : Carmen Balian
Download or read book Structure and Function in Early Glaucoma written by Carmen Balian and published by . This book was released on 2016 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: Glaucoma is a general term that includes an array of ocular conditions that cause a specific neuropathy of the optic nerve (Greenfield, Bagga, et al. 2003) of which abnormalities associated with this disorder are localized at the level of the retinal ganglion cell layer (Epstein 1997; Quigley & Broman 2006). This structure-function relationship is not clear as it relies on several factors such as variability from the structural and functional tests, differences in measurement scales between the two modalities (Greaney et al. 2002; Katz 1999; Drance 1985; Hood et al. 2007) and physiological variation amongst individuals (Pan & Swanson 2006). The global aim of this thesis was to relate visual function of the retinal ganglion cells to structure of the optic nerve head and retinal nerve fiber layer with respect to the following perimetry techniques: i) standard automated perimetry (SAP), ii) frequency doubling technology (FDT), iii) flicker defined form (FDF), and iv) the motion detection test (MDT), and the following imaging instruments: i) confocal scanning laser ophthalmoscopy (HRT), ii) optical coherence tomography (OCT), and iii) scanning laser polarimetry (GDx VCC). The specific purpose of this study was to i) compare the test-retest characteristics of the perimetry techniques, ii) determine which may be more sensitive for early detection, iii) evaluate the structure-function relationship between measures of retinal nerve fiber layer and visual function, and iv) perform a preliminary study to determine which techniques may be most suitable to monitor progression, in patients with early stage glaucoma. MDT showed little change in the 1-year follow-up study thus being unsuitable for monitoring change. FDT and FDF gave a similar performance and are likely optimal for the detection of early functional damage. Poor diagnostic agreement was seen between the HRT and each perimetry technique. Because no one perimetry test showed both high sensitivity and high specificity, it is recommended that a combination of FDF with either SAP, FDT or MDT be used as the functional component in the diagnosis and follow-up of patients with glaucoma. The strongest global structure-function correlations for OCT were seen with SAP, FDT and MDT; for GDx, the strongest association was seen with FDF. These results suggest that FDF and GDx used in combination are best to detect early glaucomatous changes.
Book Synopsis The Optic Nerve Evaluation in Glaucoma by : Austin Lifferth
Download or read book The Optic Nerve Evaluation in Glaucoma written by Austin Lifferth and published by Lippincott Williams & Wilkins. This book was released on 2017-03-27 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: All eye care providers should be proficient in evaluating the optic nerve for glaucoma in their patients. The Optic Nerve Evaluation in Glaucoma: An Interactive Workbook, gives you the practice you need to make sure your abilities are up to speed. This practical primer takes you from learning to applying – by creating a visually rich, interactive experience.
Book Synopsis Computer-Aided Glaucoma Diagnosis System by : Arwa Ahmed Gasm Elseid
Download or read book Computer-Aided Glaucoma Diagnosis System written by Arwa Ahmed Gasm Elseid and published by CRC Press. This book was released on 2020-05-14 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Glaucoma is the second leading cause of blindness globally. Early detection and treatment can prevent its progression to avoid total blindness. This book discusses and reviews current approaches for detection and examines new approaches for diagnosing glaucoma using CAD system. Computer-Aided Glaucoma Diagnosis System, Chapter 1 provides a brief introduction of the disease and current methodology used to diagnose it today. Chapter 2 presents a review of the medical background of the disease, followed by a theoretical and mathematical background used in fundus image processing. Chapter 3 is a literature review about segmentation and feature extraction. Chapter 4 describes the formulation of the proposed methodology. In Chapter 5, the results of optic disc and optic cup segmentation algorithm are presented, the feature extraction and selection method, experimental results and performance evaluations of the classifier are given. Chapter 6 presents the conclusions and discussion of the future potential for the diagnostic system. This book is intended for biomedical engineers, computer science students, ophthalmologists and radiologists looking to develop a reliable automated computer-aided diagnosis system (CAD) for detecting glaucoma and improve diagnosis of the disease. Key Features Discusses a reliable automated computer-aided diagnosis system (CAD) for detecting glaucoma and presents an algorithm that detects optic disc and optic cup Assists ophthalmologists and researchers to test a new diagnostic method that reduces the effort and time of the doctors and cost to the patients Discusses techniques to reduce human error and minimize the miss detection rate and facilitate early diagnosis and treatment Presents algorithms to detect cup and disc color, shape features and RNFL texture features Dr. Arwa Ahmed Gasm Elseid is an assistant professor, Department of Biomedical Engineering, Sudan University of Science and Technology, Khartoum, Sudan. Dr. Alnazier Osman Mohammed Hamza is professor of Medical Imaging, College of Engineering, Sudan University of Sciences and Technology, Khartoum, Sudan.
Book Synopsis The Shape of Glaucoma by : Hans G. Lemij
Download or read book The Shape of Glaucoma written by Hans G. Lemij and published by Kugler Publications. This book was released on 2000 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Optical Coherence Tomography in Glaucoma by : Ahmet Akman
Download or read book Optical Coherence Tomography in Glaucoma written by Ahmet Akman and published by Springer. This book was released on 2018-09-17 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the practical aspects of Optical Coherence Tomography (OCT) in glaucoma diagnostics offering important theoretical information along with many original cases. OCT is a non-invasive imaging technique that acquires high-resolution images of the ocular structures. It enables clinicians to detect glaucoma in the early stages and efficiently monitor the disease. Optical Coherence Tomography in Glaucoma features updated information on technical applications of OCT in glaucoma, reviews recently published literature and provides clinical cases based on Cirrus and Spectralis OCT platforms. In addition, newer techniques like event and trend analyses for progression, macular ganglion cell analysis, and OCT angiography are discussed. This book will serve as a reference for ophthalmologists and optometrists worldwide with a special interest in OCT imaging providing essential guidance on the application of OCT in glaucoma.
Book Synopsis High Resolution Imaging in Microscopy and Ophthalmology by : Josef F. Bille
Download or read book High Resolution Imaging in Microscopy and Ophthalmology written by Josef F. Bille and published by Springer. This book was released on 2019-08-13 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book provides a comprehensive overview of the application of the newest laser and microscope/ophthalmoscope technology in the field of high resolution imaging in microscopy and ophthalmology. Starting by describing High-Resolution 3D Light Microscopy with STED and RESOLFT, the book goes on to cover retinal and anterior segment imaging and image-guided treatment and also discusses the development of adaptive optics in vision science and ophthalmology. Using an interdisciplinary approach, the reader will learn about the latest developments and most up to date technology in the field and how these translate to a medical setting. High Resolution Imaging in Microscopy and Ophthalmology – New Frontiers in Biomedical Optics has been written by leading experts in the field and offers insights on engineering, biology, and medicine, thus being a valuable addition for scientists, engineers, and clinicians with technical and medical interest who would like to understand the equipment, the applications and the medical/biological background. Lastly, this book is dedicated to the memory of Dr. Gerhard Zinser, co-founder of Heidelberg Engineering GmbH, a scientist, a husband, a brother, a colleague, and a friend.
Book Synopsis Imaging in Glaucoma by : Joel S. Schuman
Download or read book Imaging in Glaucoma written by Joel S. Schuman and published by Slack. This book was released on 1997 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text presents a comprehensive evaluation of the recent and emerging imaging technologies for the clinical assessment of glaucoma. It should provide an understanding of the technology that is available and the results to expect from each method.
Book Synopsis Causes, Diagnosis and Management of Glaucoma by : Collin Cruz
Download or read book Causes, Diagnosis and Management of Glaucoma written by Collin Cruz and published by . This book was released on 2020-09-08 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: Damage to the optic nerve causes gradual vision loss. This may occur due to a group of eye diseases called glaucoma. Open-angle glaucoma, closed-angle glaucoma and normal-tension glaucoma are some types of glaucoma. Testing for glaucoma comprises of an eye examination with measurements of the intraocular pressure, an anterior chamber angle examination, and optic nerve evaluation. Scanning laser polarimetry, optical coherence tomography and scanning laser ophthalmoscopy help in assessing the retinal nerve fiber. Vision loss due to glaucoma is permanent. If the disease is detected early, it may be possible to slow or even stop the progression of the disease with the aid of laser treatment, medication or surgery. These treatments seek to lower eye pressure. This book is a valuable compilation of topics, ranging from the basic to the most complex advancements in the diagnosis and management of glaucoma. From theories to research to practical applications, case studies related to all contemporary topics of relevance to this condition have been included herein. It will help new researchers by foregrounding their knowledge in glaucoma.
Book Synopsis Diagnosis of Primary Open Angle Glaucoma by : R.N. Weinreb
Download or read book Diagnosis of Primary Open Angle Glaucoma written by R.N. Weinreb and published by Kugler Publications. This book was released on 2017-05-10 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Primary Open-Angle Glaucoma was the topic of the tenth World Glaucoma Association Consensus meeting. As with prior meetings, it was a daunting task to seek and obtain consensus on broad subject matter that ranges from diagnosis, risk profiling and screening of the disease. As it is unclear how each of us decides how we practice and the evidence to guide us often is sparse, this consensus, as well as the others, is based not only on the published literature, but also on expert opinion. Although consensus does not replace and is not a surrogate for scientific investigation, it does provide considerable value, especially when the desired evidence is lacking. The goal of this consensus is to provide a foundation for diagnosing and managing primary open-angle glaucoma and how it can be best done in clinical practice. Identification of those areas for which we have little evidence and, therefore, the need for additional research always is a high priority. We hope that this consensus report will serve as a benchmark of our understanding. However, this consensus report is intended to be fluid. It is expected that it will be revised and improved with the emergence of new evidence.
Book Synopsis Glaucoma Diagnosis and Management by : Deepak Gupta
Download or read book Glaucoma Diagnosis and Management written by Deepak Gupta and published by Lippincott Williams & Wilkins. This book was released on 2005 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers optometrists a complete, clinically oriented guide to effective diagnosis and management of glaucoma and provides valuable assistance in co-managing these patients with ophthalmologists. Coverage of diagnosis includes risk factors, genetic factors, gonioscopy, visual field analysis, intra-ocular pressure measurement, corneal thickness evaluation, and optic nerve imaging. The medical management section thoroughly describes the ophthalmic drugs used to manage glaucoma. The surgical management section describes laser and conventional procedures and offers optometrists guidelines for co-managing patients. The final section presents case studies. Chapters include clinical pearls and "how-to" instructions for procedures. Over 100 illustrations complement the text.
Book Synopsis The Characterization of Retinal Nerve Fiber Layer Thickness in Normal, High-Tension and Normal-Tension Glaucoma Using Optical Coherence Tomography by : Kwok-Hei Mok
Download or read book The Characterization of Retinal Nerve Fiber Layer Thickness in Normal, High-Tension and Normal-Tension Glaucoma Using Optical Coherence Tomography written by Kwok-Hei Mok and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "The Characterization of Retinal Nerve Fiber Layer Thickness in Normal, High-tension and Normal-tension Glaucoma Using Optical Coherence Tomography" by Kwok-hei, Mok, 莫國熙, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled "The characterization of retinal nerve fiber layer thickness in normal, high- tension and normal- tension glaucoma using Optical Coherence Tomography." Submitted by Kwok Hei MOK for the degree of Doctor of Philosophy at The University of Hong Kong in May 2005 Glaucoma is a complex multifactor disorder known to cause progressive loss of retinal ganglion cells and their axons, leading to a reduction in the thickness of the Retinal Nerve Fiber Layer (RNFL). There remains considerable disagreement within the glaucoma community as to the possible morphologic damage pattern differences in the primary chronic open angle glaucoma patients with elevated intra-ocular pressure (HTG) and those with normal intra-ocular pressure (NTG). It would be intriguing to determine if there is any morphological difference in RNFL between HTG and NTG patients since this may provide clues as to possible different factors responsible for the damage to their eyes. iiOptical coherence tomography (OCT, Humphrey systems Inc., Dublin, CA, USA) is a noninvasive technology that allows high resolution (approximately 10μm) in vivo cross-sectional imaging of the retinal structures based on the principle of Michelson interferometry. It allows a direct and objective estimation of RNFL thickness. One major benefit of RNFL assessment using OCT is that twelve clock hour thickness values along a circular path around the optic disc are displayed. This regional data analysis makes it more sensitive to detect localized changes. However, reproducibility of regional data was reported to be unsatisfactory. We found that increasing the number of scans to five scans per examination significantly improves reproducibility of regional values in both healthy and glaucomatous eyes. The peri-papillary RNFL under investigation exhibited double-hump patterns. RNFL was thickest in the supero- and infero-temporal regions (double humps) and thinnest in the temporal and nasal regions (double troughs). We observed that the RNFL in 129 eyes of 129 Hong Kong-Chinese subjects appeared to significantly decrease both over time cross-sectionally (3.3μm per decade, pTo best of my knowledge, there has been no study specifically investigating the profile of RNFL injury at different stages of glaucoma. Specific glaucomatous RNFL profiles injury may not only serve as a useful basis for diagnosing and monitoring disease progression, but also provide insights into the mechanism and pattern of ganglion cell atrophy in glaucomatous optic neuropathy. Glaucomatous RNFL loss occurs with regional preferences at different stages of the disease. We first reported that only infero-and supero-temporal regional values were found to decrease continuously, and that a localized defect was observed first in the infero-temporal region in pre-perimetric and early stages. This finding of preferential damage in the inferior as opposed to superior fibers in the very early stage of glaucoma damage is intriguing, and may shed light into the mechanism of the damage.. In NTG and HTG patients, our findings showed that RNFL topographical changes are similar i
Book Synopsis A Patient's Guide to Glaucoma by : Young H. Kwon
Download or read book A Patient's Guide to Glaucoma written by Young H. Kwon and published by Fep International. This book was released on 2008-04 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Patient's Guide to Glaucoma is a very useful educational resource. The authors have done an excellent job of covering the pertinent aspects of glaucoma from the patient's perspective. It provides more complete explanations of aspects of glaucoma care than any other presently available resource. It will be very helpful to patients who want more information about medications, laser, trabeculectomy, tube-shunt surgery, and many other subjects. John S. Cohen, MD Director, Glaucoma Service Cincinnati Eye Institute, Volunteer Clinical Professor University of Cincinnati Drs. Kwon, Greenlee and Fingert are to be congratulated for creating this outstanding educational program on glaucoma. These materials provide an excellent overview of the disease and its treatment. The guide can be read in its entirety or searched to answer specific questions. It is aimed at the intelligent patient seeking to understand his or her disease. The ophthalmologist's best ally in battling glaucoma is a well-informed patient and this guide will serve to develop patients who truly understand their disease. W.L.M. Alward, MD The Frederick C. Blodi Chair in Ophthalmology, Professor of Ophthalmology, Vice-Chair, Dept of Ophthalmology & Visual Sciences, University of Iowa
