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This book covers the way that all known types of eyes work, from their optics to the behaviour they guide. The ways that eyes sample the world in space and time are considered, and the evolutionary origins of eyes are discussed. This new edition incorporates discoveries made since the first edition published in 2001.

Systematics has developed rapidly during the past two decades. A multitude of new methods and contributions from a diversity of biological fields including molecular genetics and developmental biology have provided a wealth of phylogenetic hypotheses, some confirming traditional views others contradicting them. Despite such inconsistencies, it is now possible to recognize robust regions of a 'tree of life' and also to identify problematic areas which have yet to be resolved. This is the first book to apply the current state of phylogeny to an evolutionary interpretation of animal organ systems and body architecture, providing alternative theories in those cases of continuing controversy. Organs do not appear suddenly during evolution; instead they are composed of far simpler structures. In some cases it is even possible to trace particular molecules or physiological pathways as far back as pre-animal history. What emerges is a fascinating picture, showing how animals have combined ancestral and new elements in novel ways to form constantly changing responses to environmental requirements. The Evolution of Organ Systems starts with a general overview of current animal phylogeny, followed by review of general body organization including symmetry, anteroposterior axis, dorsoventral axis, germ layers, segmentation, and skeletons. Subsequent chapters then provide a detailed description of the individual organ systems themselves - integument, musculature, nervous system, sensory organs, body cavities, excretory system, circulatory system, respiratory system, intestinal system, gonads and gametes. Generously illustrated throughout, this accessible text is suitable for both upper level undergraduate and graduate students taking courses in animal evolution, organogenesis, animal anatomy, zoology and systematics. It will also be a valuable reference tool for those professional researchers in these fields requiring an authoritative, balanced and up-to-date overview of the topic.

Spatial vision is a subject in which philosophy, psychology, ophthalmology, neurophysiology and pathology meet. It is the unique contribution of this book that gives a survey of the whole subject, in historical perspective. The author, a former professor of ophthalmology at the University of Amsterdam, is an authority in the field of binocular vision (Diplopia, 1973) and colour vision (History of Color, 1999). Seeing Space is written for ophthalmologists, optometrists, orthoptists and other practitioners of visual science, but also for psychologists and anybody interested in the philosophy and science of perception. The book contains three parts: Part I contains chapters on objective and subjective space and on non-visual space perception. Part II begins with a short survey of the visual system. As eye movements are of crucial importance in the perception of space, the evolution of the eye and the eye movements is described. There are chapters on the perception of direction, stereoscopic depth and movement. A sensorimotor theory of space perception is elaborated. Part III is dedicated to the perception of objects. There are chapters on the perception of contours, surfaces, dimensionality and size (including the "moon illusion"). Finally the problem of the relation between mind and matter is raised, but not solved.