Download or read book Retinal Implant 26 Success Secrets 26 Most Asked Questions on Retinal Implant What You Need to Know written by Tammy Forbes and published by Emereo Publishing. This book was released on 2014-02 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: A retinal implant is a Biomedical implant technics at the moment being elaborated by a numeral of undisclosed businesses and study establishments international. The implant is denoted to partly reinstate practical apparition to folks whoever have missed their apparition expected to degenerative eye states such like retinitis pigmentosa either macular deterioration. There has never been a Retinal implant Guide like this. It contains 26 answers, much more than you can imagine; comprehensive answers and extensive details and references, with insights that have never before been offered in print. Get the information you need--fast! This all-embracing guide offers a thorough view of key knowledge and detailed insight. This Guide introduces what you want to know about Retinal implant. A quick look inside of some of the subjects covered: Neurostimulation - Visual Prosthesis, Visual prosthetic - Photovoltaic Retinal Prosthesis, Retinal implant - Advantages, Neurostimulation - Stimulation Microelectrode Technologies, Retinal implant - Design Principles, Neurochip - Applications, Retinitis pigmentosa - Research, Retinal implant - Clinical Studies, Retinal implant - Types of Retinal Implants, Retinal implant - Candidates, Retinal implant - Spatial Resolution, Retinal implant - Disadvantages, Retinitis pigmentosa - Treatment, Foundation Fighting Blindness - Research and Clinical Trials, Argus Retinal Prosthesis - Design, Visual prosthesis - Photovoltaic Retinal Prosthesis, Cyborg - In medicine, Brain-computer interface - BCI versus neuroprosthetics, Visual prosthetic - Tuuml;bingen MPDA Project Alpha IMS, Retinal implant - History, and much more...
Download or read book Retinal Prosthesis written by Mark S. Humayun and published by Springer. This book was released on 2018-01-17 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended as a useful and practical guide primarily oriented toward ophthalmic practitioners involved in retinal prosthesis implantation and post-operative visual rehabilitation, this book focuses on the Argus II Retinal Prosthesis and its revolutionary incorporation into the practice. The reader will get an update on patient selection, expected visual outcomes, surgical implantation techniques, and post-operative visual rehabilitation. Retinal Prosthesis - A Clinical Guide to Successful Implementation is written in a clear and concise manner and includes diagrams and high quality photographs to demonstrate best practices in surgical techniques and desired outcomes. Covering topics such as history of retinal prostheses, bioengineering considerations, clinical therapies, and other therapies and future directions, this book is written for practicing ophthalmologists, residents, and medical students interested in retinal implants.
Download or read book Artificial Vision written by Veit Peter Gabel and published by Springer. This book was released on 2016-11-24 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents and analyses the most recent research dedicated to restoring vision in individuals who are severely impaired or blind from retinal disease or injury. It is written by the leading groups worldwide who are at the forefront of developing artificial vision. The book begins by discussing the difficulties in comparing and interpreting functional results in the area of very low vision and the principal prospects and limitations of spatial resolution with artificial tools. Further on, chapters are included by researchers who stimulate the surface or the pigment epithelial side of the retina and by experts who work on stimulating the optic nerve, the lateral geniculate body and the superficial layers of the visual cortex. Artificial Vision: A Clinical Guide collates the most recent work of key artificial vision research groups to explain in a comparable and stringent order their varying approaches, the clinical or preclinical outcomes and their achievements during the last years. Senior ophthalmic fellows and academic practitioners will find this guide to be an indispensable resource for understanding the current status of artificial vision.
Download or read book A Curvable Silicon Retinal Implant written by Rostam Dinyari and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In age-related macular degeneration (AMD) and retinitis pigmentosa (RP), two leading causes of blindness, the photoreceptor layer of the retina is degenerated while the rest of the retina is well preserved. The function of the photoreceptors is very similar to that of solar cells. Upon receiving light, they activate the inner layers of the retina by producing electrical and chemical signals. These signals are then processed and compressed by a complex circuit of retinal neurons (horizontal cells, bipolar cells, amacrine cells, and ganglion cells) and sent to the brain. The brain perceives these data as sight. Electronic retinal implant systems seek to restore sight in AMD and RP by electrical stimulation of the surviving retinal neurons. Currently the more dominant systems consist of a microelectrode array, which is placed directly on the ganglion cells (epiretinal). In this approach, a camera mounted on goggles captures video which is then processed by a pocket computer. The power and data are then transmitted wirelessly to an extraocular receiver unit. Through an intraocular cable, the receiver unit sends appropriate electrical stimuli to the array of microelectrodes. The electrodes then stimulate the ganglion cells by passing current pulses through the tissue. These stimulations are perceived by the brain as spots of light. The epiretinal approach has some disadvantages. Because the electrodes directly stimulate the ganglion cells, the image processing and data compression capabilities of the retina are not utilized. Placing the extraocular receiver unit and connecting it via a cable to the microelectrode array significantly complicates the surgical procedure and increases the chance of post surgical complications. Additionally, the perceived images are independent of the eye movements. We have developed an integrated photovoltaic monolithic silicon retinal implant that requires no electrical power or data connection. In our design, a miniature camera captures video that is processed by a pocket computer before being projected into the eye at a near-infrared wavelength ([Lambda] = 905 nm) onto the silicon implant located in the subretinal space (area in the back of the retina). The implant consists of a two-dimensional array of photovoltaic pixels. The projected image is provided in pulsed fashion and each pixel element consists of up to three series-connected photovoltaic cells such that the pixels deliver current pulses that are sufficiently strong to stimulate the remaining functional neural cells. The current pulses are interpreted as visual images by the brain. Placing the implant in the subretinal space allows for utilization of the existing image processing and data compression functions of the retina. Each pixel receives both power and data directly through laser radiation. This eliminates the need for a separate wireless receiver unit and simplifies the surgical procedures and reduces the post-surgical risks. Additionally, in this approach, eye movements change the perceived images. The novelty of the work reported here is the integration of photovoltaic devices in a MEMS process that allows the implant to deform to the natural curvature of the eye, while also providing isolation between the bodies of the three series-connected subpixels that make up each pixel. This was achieved by patterning the implants into an array of pixels connected together by deformable silicon flexures. In addition, the trenches also provide electrical isolation between the three series-connected photovoltaic subpixels. Curving the implant is advantageous since the complete implant is in focus, resulting in optimum quality of vision perceived. Curved implants can also be substantially larger than planar implants and can hence cover a larger part of the field of view. A curvable implant also causes no mechanical strain or abnormality in the eye. Usage of three series-connected subpixels per pixel improves the impedance matching to the surrounding tissue and enhances the injected current per pixel allowing for higher resolution implants. Fabricated implant with a resolution of 64 pixels/mm2 can inject sufficient current for neural activation at safe optical intensities. Additionally, the exchange of nutrients and waste, which is necessary for the survival of the retinal cells, is provided by diffusion through the trenches that define the silicon devices.
Download or read book Vision 355 Success Secrets 355 Most Asked Questions on Vision What You Need to Know written by Florence Mathews and published by Emereo Publishing. This book was released on 2014-09-28 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up-to-the-minute Vision. There has never been a Vision Guide like this. It contains 355 answers, much more than you can imagine; comprehensive answers and extensive details and references, with insights that have never before been offered in print. Get the information you need--fast! This all-embracing guide offers a thorough view of key knowledge and detailed insight. This Guide introduces what you want to know about Vision. A quick look inside of some of the subjects covered: Cable television - Malaysia, Color vision - Mathematics of color perception, Machine vision - Methods, Telecommunications in China - Television, Analog television Other types of display screens, Telecommunication - Radio and television, Telecommunications in Lithuania - Television, RepRap Project - Major revisions, Telecommunications in Cambodia - Television, Color vision - Wavelength and hue detection, San Antonio - Television, Social television, History of television - United Kingdom, Television advertisement - Denmark, High Court of Justice - Chancery Division, Social television - Related publications, Advertising Commercial television in the 1950s, Lucasfilm - Divisions, IEEE 754 revision - Discussed but not included, Nippon Television - Cultural projects, Telecommunications in Chile - Television, Television advertisement - Australia, Direct marketing - Direct response television, DuMont Television Network - Trouble from the start, Smartphone - Radio and television, TDVision - TDVCodec, News broadcasting - Terrestrial television, College soccer - NCAA Division I, Social television - Description, Division (mathematics) - Of polynomials, ABC News - Partnership with Univision and launch of Fusion, Night vision - Patents, Public Broadcasting Act of 1967 - Educational television, Cable television - Maldives, and much more...
Download or read book Sports related Eye Injuries written by Hua Yan and published by Springer Nature. This book was released on 2020-03-10 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers sports-related eye injuries, presenting standard processes to enable clinical practitioners to make appropriate decisions on the management of these patients. Sports-related activities are responsible for a large percentage of ocular injuries, particularly among young people, and can even lead to blindness. Given the increasing trend in these injuries and the potential functional loss they entail, it is important to understand how to prevent and to accurately diagnose and treat them. This book discusses the definition, etiology, clinical presentations and signs, treatment, and prevention of sports-related eye injuries, and includes typical clinical cases, together with a wealth of images and illustrative figures. Offering a systematic and symptom-based guide to clinical practice, it will help clinical practitioners to fully prepare for the various challenges posed by sports-related eye injuries.
Download or read book Angiogenesis Assays written by Carolyn A. Staton and published by John Wiley & Sons. This book was released on 2007-01-11 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Angiogenesis, the development of new blood vessels from the existing vasculature, is essential for physiological growth and over 18,000 research articles have been published describing the role of angiogenesis in over 70 different diseases, including cancer, diabetic retinopathy, rheumatoid arthritis and psoriasis. One of the most important technical challenges in such studies has been finding suitable methods for assessing the effects of regulators of eh angiogenic response. While increasing numbers of angiogenesis assays are being described both in vitro and in vivo, it is often still necessary to use a combination of assays to identify the cellular and molecular events in angiogenesis and the full range of effects of a given test protein. Although the endothelial cell - its migration, proliferation, differentiation and structural rearrangement - is central to the angiogenic process, it is not the only cell type involved. the supporting cells, the extracellular matrix and the circulating blood with its cellular and humoral components also contribute. In this book, experts in the use of a diverse range of assays outline key components of these and give a critical appraisal of their strengths and weaknesses. Examples include assays for the proliferation, migration and differentiation of endothelial cells in vitro, vessel outgrowth from organ cultures, assessment of endothelial and mural cell interactions, and such in vivo assays as the chick chorioallantoic membrane, zebrafish, corneal, chamber and tumour angiogenesis models. These are followed by a critical analysis of the biological end-points currently being used in clinical trials to assess the clinical efficacy of anti-angiogenic drugs, which leads into a discussion of the direction future studies should take. This valuable book is of interest to research scientists currently working on angiogenesis in both the academic community and in the biotechnology and pharmaceutical industries. Relevant disciplines include cell and molecular biology, oncology, cardiovascular research, biotechnology, pharmacology, pathology and physiology.
Download or read book Steps to an Ecology of Mind written by Gregory Bateson and published by University of Chicago Press. This book was released on 2000 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gregory Bateson was a philosopher, anthropologist, photographer, naturalist, and poet, as well as the husband and collaborator of Margaret Mead. This classic anthology of his major work includes a new Foreword by his daughter, Mary Katherine Bateson. 5 line drawings.
Download or read book The Times Index written by and published by . This book was released on 2009 with total page 1734 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indexes the Times, Sunday times and magazine, Times literary supplement, Times educational supplement, Times educational supplement Scotland, and the Times higher education supplement.
Download or read book Artificial Intelligence in Healthcare written by Adam Bohr and published by Academic Press. This book was released on 2020-06-21 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificial Intelligence (AI) in Healthcare is more than a comprehensive introduction to artificial intelligence as a tool in the generation and analysis of healthcare data. The book is split into two sections where the first section describes the current healthcare challenges and the rise of AI in this arena. The ten following chapters are written by specialists in each area, covering the whole healthcare ecosystem. First, the AI applications in drug design and drug development are presented followed by its applications in the field of cancer diagnostics, treatment and medical imaging. Subsequently, the application of AI in medical devices and surgery are covered as well as remote patient monitoring. Finally, the book dives into the topics of security, privacy, information sharing, health insurances and legal aspects of AI in healthcare. Highlights different data techniques in healthcare data analysis, including machine learning and data mining Illustrates different applications and challenges across the design, implementation and management of intelligent systems and healthcare data networks Includes applications and case studies across all areas of AI in healthcare data
Download or read book The Ultimate Guide To Choosing a Medical Specialty written by Brian Freeman and published by McGraw Hill Professional. This book was released on 2004-01-09 with total page 493 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first medical specialty selection guide written by residents for students! Provides an inside look at the issues surrounding medical specialty selection, blending first-hand knowledge with useful facts and statistics, such as salary information, employment data, and match statistics. Focuses on all the major specialties and features firsthand portrayals of each by current residents. Also includes a guide to personality characteristics that are predominate with practitioners of each specialty. “A terrific mixture of objective information as well as factual data make this book an easy, informative, and interesting read.” --Review from a 4th year Medical Student
Download or read book Pediatric Retina written by James D. Reynolds and published by Springer Science & Business Media. This book was released on 2010-09-14 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pediatric retinal diseases are not simply retinal diseases that occur in children; rather, they are unique disorders that often are not found in adults. This textbook of the pediatric retina offers in-depth guidance on congenital and acquired diseases of the retina in the pediatric population. It is organized according to disease onset and timing, as well as anatomy. All chapters are written by leading authorities in the field from both the pediatric and the retinal perspective. A multidisciplinary approach to the topic is adopted, and critical information is included on disease classification and diagnosis, pathophysiology, genetics, complications, and prognosis. Pediatric Retina will be a useful source of information for pediatric ophthalmologists, retina specialists, and other eye care providers who care for children.
Download or read book You Are Not So Smart written by David McRaney and published by Avery. This book was released on 2012-11-06 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explains how self-delusion is part of a person's psychological defense system, identifying common misconceptions people have on topics such as caffeine withdrawal, hindsight, and brand loyalty.
Download or read book International Medical Guide for Ships written by World Health Organization and published by World Health Organization. This book was released on 2007 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication shows designated first-aid providers how to diagnose, treat, and prevent the health problems of seafarers on board ship. This edition contains fully updated recommendations aimed to promote and protect the health of seafarers, and is consistent with the latest revisions of both the WHO Model List of Essential Medicines and the International Health Regulations.--Publisher's description.
Download or read book Your Inner Fish written by Neil Shubin and published by Vintage. This book was released on 2008-01-15 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The paleontologist and professor of anatomy who co-discovered Tiktaalik, the “fish with hands,” tells a “compelling scientific adventure story that will change forever how you understand what it means to be human” (Oliver Sacks). By examining fossils and DNA, he shows us that our hands actually resemble fish fins, our heads are organized like long-extinct jawless fish, and major parts of our genomes look and function like those of worms and bacteria. Your Inner Fish makes us look at ourselves and our world in an illuminating new light. This is science writing at its finest—enlightening, accessible and told with irresistible enthusiasm.
Download or read book Converging Technologies for Improving Human Performance written by Mihail C. Roco and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: M. C. Roco and W.S. Bainbridge In the early decades of the 21st century, concentrated efforts can unify science based on the unity of nature, thereby advancing the combination of nanotechnology, biotechnology, information technology, and new technologies based in cognitive science. With proper attention to ethical issues and societal needs, converging in human abilities, societal technologies could achieve a tremendous improvement outcomes, the nation's productivity, and the quality of life. This is a broad, cross cutting, emerging and timely opportunity of interest to individuals, society and humanity in the long term. The phrase "convergent technologies" refers to the synergistic combination of four major "NBIC" (nano-bio-info-cogno) provinces of science and technology, each of which is currently progressing at a rapid rate: (a) nanoscience and nanotechnology; (b) biotechnology and biomedicine, including genetic engineering; (c) information technology, including advanced computing and communications; (d) cognitive science, including cognitive neuroscience. Timely and Broad Opportunity. Convergence of diverse technologies is based on material unity at the nanoscale and on technology integration from that scale.
Download or read book The New York Times Index written by and published by . This book was released on 1993 with total page 1322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
