Visual Prosthetics provides an in-depth analysis of the principles of operation, current state, anticipated developments, and functional aspects of visual prosthetics restoring sight to visually impaired individuals. This volume uniquely describes the human visual system in health and disease in a pedagogical and didactic manner, fitting to professionals and researchers with a bioengineering background. Readers will find a balanced overview of electrical, molecular chemical and synthetic chromophore stimulation, in addition to the biophysics and psychological aspects of vision restoration. Unlike competitive texts, this introduction also includes the need and methods for functional evaluation and rehabilitation.Professionals in the field of biomedical engineering and graduate and postgraduate researchers will find Visual Prosthetics a valuable reference.
Visual prosthetics as a multidisciplinary challenge.- The human visual system - an engineering perspective.- Vision's first steps: anatomy, physiology, and perception in the retina, lateral geniculate nucleus, and early visual cortical areas.- Retinal remodeling and visual prosthetics.- Cortical plasticity and reorganization in severe vision loss.- Visual perceptual effects of long-standing vision loss.- Structures, materials, and processes at the electrode-to-tissue interface.- Delivery of information and power to the implant, integration of the electrode array with the retina, and safety of chronic stimulation.- Retinal cell excitation modeling.- Neurotransmitter stimulation for retinal prosthesis -The Artificial Synapse Chip.- Synthetic Chromophores and Neural Stimulation of the Visual System.- Biophysics/Engineering of Cortical Electrodes.- The response of retinal neurons to electrical stimulation: a summary of in-vitro and in-vivo animal studies.- Findings from acute retinal stimulation in blind patients.- The perceptual effects of chronic retinal stimulation.- Findings from chronic optic nerve and cortical stimulation.- Simulations of prosthetic vision.- Image Analysis, Information Theory and Prosthetic Vision.- Simulations of cortical prosthetic vision.- Phosphene mapping techniques for visual prostheses.- Prosthetic vision assessment.- Activities of Daily Living and Rehabilitation with Prosthetic Vision.
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