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Examining established and emerging treatments for the correction of hyperopia and presbyopia, this reference offers guidance on technologies such as thermal or conductive keratoplasty, corneal implants, laser scleral relaxation, scleral expansion rings, intraocular lenses, and LASIK modifications.
Kanski’s Clinical Ophthalmology: A Systematic Approach is the classic specialty text providing the perfect ophthalmology foundation for trainees through to experienced practitioners. The famous visually dynamic and succinct format enables easy comprehension and focused guidance in the diagnosis and management of ophthalmic disorders. Build the ultimate foundation in ophthalmology with this market-leading resource. Benefit from guidance on examination, imaging, and the recognition of systemic conditions associated with ocular disease. Completely revised by award-winning ophthalmic educator Brad Bowling, the eighth edition reflects the latest advances, making this an indispensable resource to enhance learning, aid exam preparation and guide clinical practice. Designed for rapid reference and efficient recall, the concise but comprehensive chapters use crisp targeted text, bulleted lists, tables, and visual aids to highlight salient points across all ophthalmology subspecialties. Features detailed updates on key evolving topics such as the spectrum of macular disease, with many new disorders added to this edition across a range of subspecialties. Increased emphasis on practical investigation and management. Includes 2,600 illustrations, images and artworks, with over 900 brand new for this edition, including ultra wide-field imaging, fundus autofluorescence, and high-resolution OCT. Consult this title on your favourite e-reader.
The incredible bestselling book from the author of No Barriers and The Adversity Advantage Erik Weihenmayer was born with retinoscheses, a degenerative eye disorder that would leave him blind by the age of thirteen. But Erik was determined to rise above this devastating disability and lead a fulfilling and exciting life. In this poignant and inspiring memoir, he shares his struggle to push past the limits imposed on him by his visual impairment-and by a seeing world. He speaks movingly of the role his family played in his battle to break through the barriers of blindness: the mother who prayed for the miracle that would restore her son's sight and the father who encouraged him to strive for that distant mountaintop. And he tells the story of his dream to climb the world's Seven Summits, and how he is turning that dream into astonishing reality (something fewer than a hundred mountaineers have done). From the snow-capped summit of McKinley to the towering peaks of Aconcagua and Kilimanjaro to the ultimate challenge, Mount Everest, this is a story about daring to dream in the face of impossible odds. It is about finding the courage to reach for that ultimate summit, and transforming your life into something truly miraculous. "An inspiration to other blind people and plenty of us folks who can see just fine."—Jon Krakauer, New York Times bestselling author of Into Thin Air
University Physics is a three-volume collection that meets the scope and sequence requirements for two- and three-semester calculus-based physics courses. Volume 1 covers mechanics, sound, oscillations, and waves. Volume 2 covers thermodynamics, electricity and magnetism, and Volume 3 covers optics and modern physics. This textbook emphasizes connections between between theory and application, making physics concepts interesting and accessible to students while maintaining the mathematical rigor inherent in the subject. Frequent, strong examples focus on how to approach a problem, how to work with the equations, and how to check and generalize the result. The text and images in this textbook are grayscale.
A holistic guide to improving one’s vision both physically and spiritually • Explains how blurred vision is a reflection of other imbalances in the body, mind, and spirit • Offers natural methods for improvement of poor eyesight and stress-related difficulties, including dyslexia and ADHD • Combines the core values of the Bates method of natural vision improvement and Taoism Fewer than three percent of children in North America are born with visual defects, yet as they become adults nearly two thirds will become reliant on prescription lenses to see clearly. Virtually nonexistent in pre-industrialized cultures, this epidemic of blurred vision can be traced to mental, physical, and spiritual imbalances in modern society. The traditional “quick fixes” of eyeglasses and contact lenses only serve to cover the true cause of blurred vision while increasing eye-strain, and often progressively worsen eyesight as the eyes become trained to work within the confines of the corrective lenses. The advent of refractive surgery carries even more serious risks. In Restoring Your Eyesight, Doug Marsh offers a natural alternative that shows readers how to improve their eyesight by taking conscious control of their vision health. He combines proven methods pioneered a century ago by eye doctor William Bates with the ancient Chinese wisdom of Taoism. Marsh describes how vision goes deeper than the eyes and optic nerves, extending well into the layers of the mind, emotions, and spirit. Eyesight difficulties are often connected to behavioral and stress-related syndromes, such as dyslexia, ADHD, stuttering, TMJ, and anxiety disorders. He draws upon the core values of the Bates method and Taoism--rhythm, softness, return, balance, and wholeness--to provide guidelines for a holistic healing of outer and inner vision.
A revelatory account of the brain's capacity for change When neuroscientist Susan Barry was fifty years old, she experienced the sense of immersion in a three dimensional world for the first time. Skyscrapers on street corners appeared to loom out toward her like the bows of giant ships. Tree branches projected upward and outward, enclosing and commanding palpable volumes of space. Leaves created intricate mosaics in 3D. Barry had been cross-eyed and stereoblind since early infancy. After half a century of perceiving her surroundings as flat and compressed, on that day she saw the city of Manhattan in stereo depth for first time in her life. As a neuroscientist, she understood just how extraordinary this transformation was, not only for herself but for the scientific understanding of the human brain. Scientists have long believed that the brain is malleable only during a "critical period" in early childhood. According to this theory, Barry's brain had organized itself when she was a baby to avoid double vision - and there was no way to rewire it as an adult. But Barry found an optometrist who prescribed a little-known program of vision therapy; after intensive training, Barry was ultimately able to accomplish what other scientists and even she herself had once considered impossible. Dubbed "Stereo Sue" by renowned neurologist Oliver Sacks, Susan Barry tells her own remarkable journey and celebrates the joyous pleasure of our senses.
Better Eyesight Without Glasses is not only the definitive source for the classic Bates Method, it is in itself a remarkable phenomenon. Dr. William H. Bates’s revolutionary and entirely commonsensical theory of self-taught improved eyesight has helped hundreds of thousands of people to triumph over normal defects of vision without the mechanical aid of eyeglasses. If you think that your eyesight could be made better by natural methods, you are right. After years of experimentation, Dr. Bates came to the conclusion that many people who wore glasses did not need them. He gradually and carefully developed a simple group of exercises for improving the ability of the eyes themselves to see, eliminating the tension caused by poor visual habits that are the major cause of bad eyesight. These exercises are based on the firm belief that it is the natural function of the eyes to see clearly and that anyone, child or adult, can learn to see better without glasses.
This textbook provides students and the broader aviation community with a complete, accessible guide to the subject of human factors in aviation. It covers the history of the field before breaking down the physical and psychological factors, organizational levels, technology, training, and other pivotal components of a pilot and crew's routine work in the field. The information is organized into easy-to-digest chapters with summaries and exercises based on key concepts covered, and it is supported by more than 100 full-color illustrations and photographs. All knowledge of human factors required in aviation university studies is conveyed in a concise and casual manner, through the use of helpful margin notes and anecdotes that appear throughout the text.
A revolutionary guide to treating nearsightedness and achieving optimal vision health through exercises that strengthen the eye muscles Author David De Angelis’s search for a cure for nearsightedness was both professional and personal, since he suffered from the disease himself. An expert in muscular work dynamics, he discovered through extensive testing and an immersion in decades of scientific studies that working the extrinsic ocular muscles could preserve sight and re-educate the eyes toward better vision. He came to understand the importance of retinal defocus for transforming ocular refractive status. In this book, the author shares both the science and the “secret” of how he was able to reverse his own myopia: progressive retinal defocus technique. The system’s efficacy, he says, comes from the fact that it directly intervenes with the causes that generate myopia onset and development (overaccommodative/near-point stress). When adequately stimulated by the simple exercises presented in the book, ocular refractive capability leads to gradual strengthening of focusing capability and gradual decreasing of refractive error. Written in straightforward language, and featuring an extensive section on the scientific research in this field, The Secret of Perfect Vision offers a proven program of healing to the millions of people afflicted with this condition.