Vitreous

The vitreous body long has been the most mysterious of all ocular structures, owing perhaps to its seeming simplicity. There have been few concerted, sustained efforts to unravel the mysteries of how the vitreous is composed and what role it plays in normal physiology. Over the years, however, many studies have produced independent findings concerning vitreous biochemistry, structure, and physiology. The Vitreous organizes these findings into a well-constructed compendium that not only addresses the most current scientific knowledge, but also reviews historical perspec tives in a manner that lends richness to the scope of the book. The first few chapters present an exhaustive, yet readable, review of the body of scientific data that have come from laboratories and researchers throughout the world. Extensive bibliographies direct interested readers further into specific aspects of the basic science of the vitreous. Chapter II: "Embryology" and Chapter IV: "Structure" present a novel organizational approach to assembling and presenting data in an integrated manner. Chapter V: "Functions" and Chapter VI: "Development and Aging" introduce fresh perspectives on the importance of the vitreous as some thing more than a vestigial space filler within the eye.

The present book is devoted to problems of a physically important state of condensed matter - the vitreous state. We tried to summarize here the experimental evidence and the different theoretical approaches - structural, thermodynamic and those of statistical physics - connected with the formation, the kinetic stability and with the general nature of glasses as a particular physical state. In addition, a summary is given on the information available concerning proces ses of nucleation and crystallization of glass-forming systems, on methods of preventing or, in contrast, catalyzing crystallization in vitrifying liquids, on the kinetics of nucleation, the modes of crystal growth in undercooled melts and the devitrification of glasses. It was our aim to summarize in the present volume the basic principles and the most significant developments of a newly emerging science - glass science - and to show that, at least, in principle, any substance can exist in the vitreous state. Moreover, we have tried to demonstrate that the characteristic properties of the vitreous state may be attributed under certain conditions not only to systems with an amorphous structure (like the common glasses) but also to a number of other states of condensed matter including the crystalline one.

Written by a pioneering leader in the development of vitreoretinal surgical techniques and instruments, Vitreous Microsurgery is a comprehensive how-to guide to all vitreoretinal procedures. This thoroughly updated Fifth Edition describes many new techniques and refinements of established procedures. More than 170 three-dimensional full-color illustrations—many by the Charles Retina Institute's resident medical artist, Byron Wood—enable surgeons to clearly visualize the techniques. This edition has new chapters on the Constellation vitrectomy system, uveitis, retinal complications of permanent keratoprosthesis, and anti-VEGF therapy and completely rewritten chapters on anesthesia and on retinopathy of prematurity. All illustrations have been updated, the majority to a 25-gauge approach instead of 20-gauge, and many new illustrations have been added. Many techniques and parameters unique to 25-gauge sutureless vitrectomy are discussed in detail. A companion website offers the fully searchable text and an image bank.

This volume in the new Surgical Techniques in Ophthalmology series offers step-by-step authoritative guidance on how to successfully perform basic retina and vitreous surgery for retinal detachments, and epiretinal membranes as well as more involved procedures such as complex scleral buckle for ROP and vitrectomy surgery for PVR. A wealth of full-color illustrations and photographs, tricks of the trade, clinical pearls, and a complete list of instruments and devices help you hone your skills and optimize every outcome. Best of all, a concise format complements the commentary and the surgical procedures on the accompanying DVD show you exactly how to proceed. Covers basic surgical principles as well as more involved procedures such as complex scleral buckle for ROP and vitrectomy surgery for diabetic tractional retinal detachments. vitreous surgery for PVR, ROP, and tumors, so you can refresh your technique or implement new ones. Features 200 full-color illustrations and a bonus DVD containing operative video clips of every vitreoretinal procedure you will need to know, to help you master new procedures, improve outcomes, and learn the latest techniques faster. Discusses post-operative care and potential complications of each surgical procedure, preparing you for any challenges you may face.

The vitreous body long has been the most mysterious of all ocular structures, owing perhaps to its seeming simplicity. There have been few concerted, sustained efforts to unravel the mysteries of how vitreous is composed and what role it plays in normal physiology as well as pathology. Over the years, however, many studies have produced important findings concerning vitreous biochemistry, structure, physiology, and pathobiology. Published on the 25th anniversary of Sebag's first book on Vitreous, this second installment is nearly five times longer than its predecessor, reflecting how much has been learned in the past quarter century. This well-constructed compendium not only addresses the most current scientific knowledge, but also reviews clinical perspectives in a manner that lends richness to the scope of the book. Written by 90 authors, this book has 56 chapters organized into 7 sections: Biochemistry; Anatomy, Development, and Aging; Pathology/Pathobiology; Physiology and Phamacotherapy; Posterior Vitreo-Retinal Surgery; Peripheral Vitreo-Retinal Surgery; and Pharmacologic Vitreolysis. With a foreword by Coleman & Lincoff and an introduction by Wallace Foulds, Sebag's latest tome on vitreous is destined to be the authoritative text for years to come.

This book provides an up-to-date and comprehensive coverage of the properties of glasses as materials and of the vitreous state in general. The broad coverage of the book includes a study of the methods of studying the structure, glass classification, and electrical, optical, thermal and mechanical properties of glasses.