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Unlike the cornea or lens, the retina is part of the central nervous system and cannot be replaced. Therefore degeneration of the outer retina is blinding, but trials using devices such as retinal implants which combine biology with technology are showing promise at restoring vision. Macular diseases are the most common cause of blindness in the developed countries. Oedema of the macula may arise in the retina, such as in diabetes mellitus or in epiretinal membrane formation, but most importantly it is age-related insufficiency of the underlying retinal pigment epithelial cell that causes...

Progress in vitreo-retinal surgery is mercurial. Since this series is dedicated to new developments the reader is presented with a motley list of topics. The advancements described here may represent generally accepted progress in the field: New instruments, Macular hole surgery, Tumor biopsy. New ideas are set out to be tested for their benefit, for example: AMD surgery, Adjunctive pharmacotherapy. Reflections on incessant clinical problems in vitreo-retina surgery require superior scrutinization of established surgical techniques and indications: Posterior slippage, Inferior breaks,...

Progress in vitreo-retinal surgery is mercurial. Since this series is dedicated to new developments the reader is presented with a motley list of topics. The advancements described here may represent generally accepted progress in the field: New instruments, Macular hole surgery, Tumor biopsy. New ideas are set out to be tested for their benefit, for example: AMD surgery, Adjunctive pharmacotherapy. Reflections on incessant clinical problems in vitreo-retina surgery require superior scrutinization of established surgical techniques and indications: Posterior slippage, Inferior breaks,...

Modern North American sturgeons and paddlefish are the result of 100 million years of evolution. Once an integral part of aboriginal culture, their numbers were decimated by overfishing and habitat destruction during the past two centuries.

This book details the extensive science aimed at helping these remarkable species recover from the brink of extinction, and describes the historical, biological, and ecological importance of North American sturgeon and paddlefish. The text is enhanced by photographs and detailed line drawings.

This comprehensive volume will be an...