Download or read book Human Eye Imaging and Modeling written by E. Y. K. Ng and published by CRC Press. This book was released on 2012-06-05 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced image processing and mathematical modeling techniques are increasingly being used for the early diagnosis of eye diseases. A comprehensive review of the field, Human Eye Imaging and Modeling details the latest advances and analytical techniques in ocular imaging and modeling. The first part of the book looks at imaging of the fundus as well as infrared imaging. It begins by exploring developments in the analysis of fundus images, particularly for the diagnosis of diabetic retinopathy and glaucoma. It also reviews anterior segment imaging and reports on developments in ocular thermography, especially the use of thermal imaging as the basis of tear evaporimetry and dry eye diagnosis. The second part of the book delves into mathematical modeling of the human eye. Coverage includes modeling of the eye during retinal laser surgery, a framework for optical simulation, heat distribution using a 3D web-splines solution, and exposure to laser radiation. The text also examines computer simulation of the human eye based on principles of heat transfer, as well as various bioheat equations to predict interior temperatures based on the surface temperature. Featuring contributions by established experts in eye imaging, this is a valuable reference for medical personnel and researchers who want to know more about state-of-the-art computer-based imaging and detection methods. It presents novel imaging and modeling algorithms that can aid in early diagnosis, with the aim of enriching the lives of people suffering from eye abnormalities.
Download or read book Optics of the Human Eye written by David A. Atchison and published by Butterworth-Heinemann Medical. This book was released on 2000 with total page 269 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text describes the optical structures and optical properties of the human eye. It is divided into five sections, covering topics such as basic optical structure of the human eye and image formation and refraction of the eye.
Download or read book Corneal Modeling and Optimization in the Design of Refractive Keratotomy written by Michael Richard Bryant and published by . This book was released on 1989 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book World Congress of Medical Physics and Biomedical Engineering 2006 written by Sun I. Kim and published by Springer Science & Business Media. This book was released on 2007-07-05 with total page 4361 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings of the World Congress 2006, the fourteenth conference in this series, offer a strong scientific program covering a wide range of issues and challenges which are currently present in Medical physics and Biomedical Engineering. About 2,500 peer reviewed contributions are presented in a six volume book, comprising 25 tracks, joint conferences and symposia, and including invited contributions from well known researchers in this field.
Download or read book Research Awards Index written by and published by . This book was released on 1989 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intraocular Lens Calculations written by Jaime Aramberri and published by Springer Nature. This book was released on 2024 with total page 1002 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zusammenfassung: Cataract surgery, with 25-30 million surgeries per year, has become one of most popular surgeries in the world. The calculation of its power is of utmost importance. As new premium intraocular lenses (IOLs) and modern surgical techniques have been developed, the demand has grown exponentially - not only for eliminating cataracts, but also for getting rid of the need for glasses. This book offers a comprehensive overview of IOL power calculations and its various formulas and methods. Chapters discuss use of the diagnostic biometry devices that provide the measurements and the management of different clinical situations where particular modifications must be applied. Chapters also discuss the newest generation of multifocal and toric IOLs that can only be implanted if no residual refraction is planned for, which implies a perfect mastery of all the IOL calculation process. This book marks the first time in ophthalmological history that all the main leaders in the field have collaborated in a project that will undoubtedly be the reference for the next ten years. Intraocular Lens Calculations is a must-have resource for cataract and refractive surgeons as well as technicians and anyone dealing with this subject
Download or read book Optical Design for Visual Systems written by Bruce H. Walker and published by SPIE Press. This book was released on 2000 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This tutorial explains the human eye, its function, and performance limits from the perspective of an experienced optical engineer and lens designer. It is concise and readable, with examples and data, and is intended for students, practicing engineers, and technology users.
Download or read book Research Grants Index written by National Institutes of Health (U.S.). Division of Research Grants and published by . This book was released on 1975 with total page 1212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Keratoconus written by Jorge L. Alió and published by Springer. This book was released on 2016-12-28 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a degenerative disorder of the eye, keratoconus can cause substantial distortion of vision, with multiple images, streaking, and sensitivity to light all reported by patients. Keratoconus: Recent Advances in Diagnosis and Treatment updates ophthalmologists about the innovations that have occurred within the last decade, discussing the diagnostic imaging techniques that have been developed for keratoconus diagnosis, understanding of how examination techniques are related to the evolution of keratoconus, and how to indicate the different therapeutic tools that have been created for keratoconus over the last several years. Additionally, fundamentals for new diagnostic elements, based on the mathematical, physical and biomechanical data are analyzed in depth for a better understanding of the essential diagnostic steps for the clinician to guide patients towards the most adequate therapeutic tool in the case. Modern keratoplasty techniques, assisted by femtosecond lasers or other devices, are also covered and these techniques, along with the emerging conservative treatments, have added to more precise control of the evolution of the disease.
Download or read book Contrast Sensitivity of the Human Eye and Its Effects on Image Quality written by Peter G. J. Barten and published by SPIE Press. This book was released on 1999 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the contrast sensitivity of the human visual system - concerning the eye's ability to distinguish objects from each other or from the background - and its effects on the imageforming process. The text provides equations for determining various aspects of contrast sensitivity, in addition to models that easily can be used for practical applications.
Download or read book Biomedical Index to PHS supported Research written by and published by . This book was released on 1989 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Corneal Topography written by Ming Wang and published by CRC Press. This book was released on 2024-06-01 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the rapid advancement of corneal topography and wavefront technologies and the increased application of corneal topography not only in refractive but also in premium IOL surgery, a new edition of the best-selling Corneal Topography: A Guide for Clinical Application in the Wavefront Era will be the foremost resource for both ophthalmologists and optometrists. In this Second Edition, Dr. Ming Wang, Dr. Tracy Swartz and over 50 contributors combine the important topics of refractive and premium lens surgeries and put corneal topography in the context of wavefront technology. With over 500 images, this edition gives special attention to the latest advances in these technologies. The state-of-the-art science and application of corneal topography for these anterior segment surgeries is well represented in Corneal Topography, A Guide for Clinical Application in the Wavefront Era, Second Edition, making it the latest and most comprehensive reference of these state-of-the-art technologies for refractive and for premium IOL surgery. Topographic and Wavefront Technologies Covered Include: • Placido disc-based topographic systems • Elevation-based topographic systems • Ultrasound-based topographic systems • OCT-based topographic systems • Topography and wavefront combined systems Topographic Applications Covered Include: • Topographies of corneal diseases, including post-RK/CK/LASIK/PRK • Topography-guided contact lens fitting • Topography application in refractive surgery and in premium IOL surgeries • Topographic guidance for corneal surgeries • Topography-guided custom treatments • Combined treatment strategies using topography and wavefront data • Future development of corneal topography in the wavefront era Updated and reorganized to reflect changes in the technology, Corneal Topography: A Guide for Clinical Application in the Wavefront Era, Second Edition is indispensible for all anterior segment surgeons, ophthalmologists, and optometrists.
Download or read book Retina written by David R. Hinton and published by Elsevier Health Sciences. This book was released on 2005-09-21 with total page 2744 pages. Available in PDF, EPUB and Kindle. Book excerpt: Praised by JAMA as "The most complete description of the development, structure, function, pathophysiology, and treatment of the retina and its diseases to be found anywhere," this monumental three-volume work puts all of today's scientific and clinical knowledge of the retina at readers' fingertips. The New Edition has been comprehensively updated and reorganized to reflect all of the very latest scientific and genetic discoveries, diagnostic imaging methods, drug therapies, treatment recommendations, and surgical techniques. The result is an indispensable reference and diagnostic tool for generalists and specialists alike. Delivers the editorial expertise of four highly respected authorities, as well as contributions from internationally recognized leaders in visual science, ophthalmology, and vitreoretinal studies. Presents more than 3,400 superb illustrations (2,200 in full color) that capture all forms of retinal disease from every perspective. Offers the very latest information on the genetic basis of retinal disease, diagnostic retinal imaging, photodynamic therapy, and age-related macular degeneration. Examines the most recent advances in diagnostic indocyanine green angiography � optical coherence tomography (OCT) and quantitative fluoroscein angiography � macular translocation with 360� peripheral retinectomy � surgery for diffuse macular edema due to multiple causes, including proliferative vitreoretinopathy � artificial vision � and much more. Features a completely restructured section on age-related macular degeneration that includes epidemiology and risk factors � prophylaxis and prevention knowledge gained from large clinical trials like AREDS � proven and experimental treatments for AMD � and pharmacotherapy. Incorporates a multitude of new full-color images, 2200 in all.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1979-10 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 144 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.
Download or read book Multifocal Intraocular Lenses written by Jorge L. Alió and published by Springer Nature. This book was released on 2019-08-30 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive 2nd edition will build on the highly successful first edition, providing an updated global perspective of the fundamentals of multifocal intraocular lenses. The varying outcomes, limitations, and the neuroadaptation process necessary for an adequate clinical success are thoroughly discussed, along with an overview of the different types of multifocal lenses, including the recently developed extended depth of focus lenses. Multifocal Intraocular Lenses: The Art and the Practice, 2nd edition opens with an introduction that will delve into current technological offerings for the correction of pseudophakic presbyopia, as well as the opportunity for refractive lens exchange in advanced presbyopic ages and the opportunity to use these lenses. The first section will include the historical background and clinical indications, while section two addresses the varying types and models of lenses currently available, including important clinical and technological highlights. Section three and four will follow, and provide an extended look at the Zeiss and Alcon Family Multifocal IOL’s. Section five will delve into extended depth of field lenses, and will contain an introduction about the concept, different models and the evidence available about their outcomes. Section six concludes the book, closely examining accommodative intraocular lenses, and a full update will be provided on these lenses, the failures of the past and the hopes for the future. Multifocal Intraocular Lenses: The Art and the Practice, 2nd edition is a thorough, resource for the practical ophthalmologist and ophthalmic surgeon interested in learning more about intraocular lenses, identifying the best technologies and lenses for the benefit of their patients.
