Kazuo Tsubota - Böcker

A significant international research effort has been directed towards understanding the composition and regulation of the preocular tear film. This effort has been motivated by the recognition that the tear film plays a critical role in maintaining corneal and conjunctival integrity, protecting against microbial challenge and preserving visual acuity. In addition, research has been stimulated by the knowledge that alteration or deficiency of the tear film, which occurs in numerous individuals throughout the world, may lead to desiccation of the ocular surface, ulceration and perforation of the cornea, an increased incidence of infectious disease, and potentionally pronounced visual disability and blindness. This text debates the research done in this area.

This second edition of "Modern Bacterial Taxonomy" has been completely revised and expanded to include detailed coverage of molecular systematics including relevant aspects of nucleic acid sequences, the construction of phylogenetic trees, typing of bacteria by restriction fragment length polymorphisms, DNA hybridization probes and the use of the polymerase chain reaction in bacterial systematics. The more traditional aspects of bacterial systematics have been updated and in all areas the methodology and application of these techniques have been discussed. The authors have also described how current concepts of procaryotic classification and evolution are being changed, often with considerable controversy, by molecular studies. This book should be of interest to senior undergraduates in microbiology and affiliated biological science degrees and to professional applied microbiologists in the food, water and beverage industries.

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.