This selection of articles from the Encyclopedia of the Eye is the first single-volume overview presenting articles on the function, biology, physiology, and pathology of the structures of the ocular periphery, as well as the related disorders and their treatment. The peripheral structures are implicated in a number of important diseases, including optic neuritis, thyroid eye disease, and strabismus. The volume offers a basic science background of these topics rather than a strictly clinical focus. - The first single volume to integrate comparative studies into a comprehensive resource on the neuroscience of the ocular periphery - Chapters are carefully selected from the Encyclopedia of the Eye by the world's leading vision researchers - The best researchers in the field provide their conclusions in the context of the latest experimental results
Ocular Surface Disease: Cornea, Conjunctiva and Tear Film incorporates current research and the latest management strategies as well as classification systems and treatment paradigms for all forms of ocular surface disease. This is the first comprehensive resource that helps you to meet ocular surface disease challenges effectively using today's best medical and surgical approaches. Get the complete, evidence-based guidance you need to provide optimal care for your patients with ocular surface disease. Implement the latest drug treatments and surgical interventions to provide better outcomes with fewer complications. Hone and expand your surgical skills by watching videos of leading experts performing advanced procedures including ocular surface transplantation techniques; amniotic membrane transplantation; pterygium surgery; lamellar keratoplasty (DALK) in ocular surface disease; and keratoprosthesis surgery. Visualize how to proceed by reviewing detailed, full-color images and consulting new classification systems and treatment paradigms for mild to severe forms of ocular surface disease. Take it with you anywhere! Access the full text, downloadable image library, video clips, and more online at expertconsult.com.
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.
A comprehensive understanding of diseases of the peripheral retina is essential to the general ophthalmologist as well as to the vitreoretinal surgeon. Expertise in in direct ophthalmoscopy, scleral depression, and contact lens biomicroscopy serves as a basis for observing the peripheral retina. These observations are then re corded on fundus drawing paper and the Tolentino vitreo-retinal chart. This or derly sequence of skills allows the ophthalmic surgeon to objectively diagnose and evaluate specific peripheral retinal disorders and plan for their therapeutic management. The Clinical Atlas of Peripheral Retinal Disorders is a compilation of fundus paint ings by David A. Tilden based on our observations of a large number of patients over the past 15 years. The atlas is organized along functional and anatomical lines. After a brief introduction to the clinical anatomy of the peripheral retina, the appearance of the fundus as a function of skin color and aging is presented. Many of the diseases of the peripheral retina can be divided into trophic (nutritional), tractional, and a combination of trophic plus tractional etiologies. This classifica tion system, although somewhat simplistic, appears adequate for our present level of understanding of the pathogenetic mechanisms of these disorders. Un doubtedly, once the molecular biology of these conditions is elucidated through future research, the classification will be revised. In addition, there are other con ditions that affect the peripheral retina that do not fit the proposed classification system and are covered under separate headings, i. e.
The Eye in Systemic Disease, Second Edition presents an overview of the relationship of the eye and medicine. The book details the systemic aspects of diseases. The topics discussed include various eye conditions such as conjunctivitis, episcleritis, keratitis, keratoconjunctivitis sicca, and cataract. Endocrine, circulatory, rheumatological, neurological, pulmonary, and blood disorders are covered as well. Physicians and students of medicine and pathology will find the book very useful.
The ability to see deeply affects how human beings perceive and interpret the world around them. For most people, eyesight is part of everyday communication, social activities, educational and professional pursuits, the care of others, and the maintenance of personal health, independence, and mobility. Functioning eyes and vision system can reduce an adult's risk of chronic health conditions, death, falls and injuries, social isolation, depression, and other psychological problems. In children, properly maintained eye and vision health contributes to a child's social development, academic achievement, and better health across the lifespan. The public generally recognizes its reliance on sight and fears its loss, but emphasis on eye and vision health, in general, has not been integrated into daily life to the same extent as other health promotion activities, such as teeth brushing; hand washing; physical and mental exercise; and various injury prevention behaviors. A larger population health approach is needed to engage a wide range of stakeholders in coordinated efforts that can sustain the scope of behavior change. The shaping of socioeconomic environments can eventually lead to new social norms that promote eye and vision health. Making Eye Health a Population Health Imperative: Vision for Tomorrow proposes a new population-centered framework to guide action and coordination among various, and sometimes competing, stakeholders in pursuit of improved eye and vision health and health equity in the United States. Building on the momentum of previous public health efforts, this report also introduces a model for action that highlights different levels of prevention activities across a range of stakeholders and provides specific examples of how population health strategies can be translated into cohesive areas for action at federal, state, and local levels.
Well organized and comprehensive, this text is richly illustrated with full-color photographs to assist with diagnosis and treatment of disorders of the peripheral ocular fundus. It covers developmental anomalies of the peripheral retina, ora serrata, and pars plana, with emphasis placed on degeneration and anomalies of the retina and vitreous which have the potential for producing a retinal break or detachment. Each condition includes a clinical description, histopathology, clinical significance, and brief discussions of treatment. Features Optomap images from the Panoramic200, which allow a full view of the peripheral retina rather than a partial view. Includes images taken with the more traditional condensing lens. Presents updated and expanded treatment descriptions for each of the clinical conditions. Features a more reader-friendly, full-color format, providing more clinical utility for the student and practitioner. Contains updated references for further study and research.
The second edition of this excellent and highly popular textbook continues to address the Royal College of Ophthalmologists (RCOphth) syllabus for trainee ophthalmologists and is an essential read for those studying ophthalmology, optometry and orthoptics. As a theoretical and practical aid, it guides readers through postgraduate Ophthalmic Specialist Training. Emphasis is placed on the practical assessment and management of key ophthalmic conditions. Clearly laid out and highly illustrated in full colour throughout, each condition is discussed in two or three-pages, beginning with general explanations of the pathophysiology and clinical evaluation, followed by differential diagnoses and treatment options. This thoroughly revised second edition includes new chapters on paediatric ophthalmology, refractive surgery and microsurgical skills. This text will appeal to foundation doctors, specialist trainees in ophthalmology, candidates preparing for the Fellowship of the Royal College of Ophthalmology (FRCOphth) examination, consultants in ophthalmology and practitioners looking for a comprehensive but accessible guide to the subject.
This book provides an illustrated guide to peripheral retinal degenerations and the role of spectral domain coherence tomography (SD-OCT) in diagnosis and treatment. The book discusses 73 clinical cases and gives detailed information on the principles of SD-OCT and its application in the imaging of peripheral retina. Peripheral Retinal Degenerations: Optical Coherence Tomography and Retinal Laser Coagulation, 2nd edition, discusses a broad range of retinal pathologies such as chorioretinal degenerations, posterior vitreous detachment, vitreoretinal adhesions and tractions and includes a plethora of high-quality clinical images throughout. Ophthalmologists and retinal specialists will find this updated edition to be the perfect didactic resource for furthering skills and knowledge in this clinical area.
