Eye Movement Disorders

There is perhaps no area of neuro-ophthalmology that is advancing more rapidly with respect to an understanding of its anatomy and physiology than the ocular motor system. For this reason, it is difficult not only to keep up with the latest information concerning the basic mechanisms involved in the control of eye movements but also to remain up to date regarding the pathophysiology of specific disorders of eye movement. The material in this book is derived from a two-day course on eye movements held in The Netherlands in 1986. The course was designed as an introduction to the normal ocular motor system and to disorders of eye movements and was aimed toward orthoptists, ophthalmolo gists, optometrists, neurologists, and neurosurgeons. The chapters in this book were compiled by a trio of experts in the field of eye movements and contain discussions of anatomy and physiology of the ocular motor system, techniques of examination of patients with diplopia, and pathophysiology of specific disorders of ocular motility. Many of the authors of these chapters are among the most active investigators of eye movements in the world today, and their comments thus reflect the latest information in the field. This text is both basic and com prehensive and thus has something for everyone, from the student just beginning a study of the ocular motor system to the seasoned 'veteran' who wishes to know the latest information regarding central ocular motor control mechanisms. Neil R.

In Eye Movement Disorders in Clinical Practice, a leading expert with over thirty years of teaching experience in neurology and neuro-ophthalmology offers comprehensive instruction on the diagnosis and treatment of all varieties of eye movement disorders. This important new text reflects the importance of correlating clinical signs of disorders in the oculomotor system with their neuroanatomic and neurophysiologic architecture. With its focus on signs and symptoms, the book advances lesion localization of eye movement disorders as the central clinical concern. The reader is also presented with a fresh review of bedside examination techniques in the ER, ICU, and walk-in clinic; productive ways of taking a clinical history; sign interpretation; source lesion localization; and, where appropriate, therapy. Unlike most of the titles on eye movement disorders, this book's chapters are arranged according to objective signs - like ptosis, neuromuscular syndromes, dizziness, vertigo, and syndromes of the medulla - rather than disease entities. This emphasis on the topographic analysis of symptoms and signs is contrary to the prevailing clinical approach in which responsibility for therapy typically drives the clinician to arrive at an etiological diagnosis as rapidly as possible. At risk in this process is nothing less than the art of clinical medicine. One of the aims of this book is to reverse this process, and move clinicians back to the observation and interpretation of signs. The text features over 100 clinical cases, each one challenging the reader to determine the neuroanatomical location of the patient's lesion. This exercise provides the anatomical guidance needed to make critical diagnostic and management decisions in patients who often present with abnormal eye movements. Dynamic and intellectually stimulating, Eye Movement Disorders in Clinical Practice is essential for any reader wanting to better understand eye movement disorders.

The anesthetic implications of eye muscle surgery are varied and numerous. Being a condition that can be seen in all age groups, the anesthetist or anesthesiologist will see pediatric, adult, and geriatric patient populations. This book examines and analyzes the causes, symptoms and treatment options to strabismus and nystagmus. It discusses benign paroxysmal positional vertigo; strabismus surgery; central positional dizziness; the treatment of intermittent exotropia in childhood; and nystagmus in posterior fossa stroke patients.

This book describes a sleep disorder belonging to the category of parasomnias (i.e. the sleep behavioral and experiential disorders) characterized by abnormal vocal and motor behaviors in the context of vivid dreams and loss of the customary muscle atonia during the stage of sleep called REM sleep. REM-atonia - one of the defining features of REM sleep, along with rapid-eye-movements and a highly activated brain state - serves a protective function, preventing the dreamer from acting-out dreams and becoming injured. REM sleep behavior disorder (RBD) was first described in 1986 by Schenck and colleagues; since then the understanding of the condition has increased exponentially, also pointing out its strong association with the development of neurodegenerative disorders characterized by alpha synuclein deposition, such as Parkinson’s disease, Dementia with Lewy bodies, and Multiple System Atrophy. Furthermore, RBD is now considered one of the earliest markers of ongoing alpha synuclein neurodegeneration, and provides a window of opportunity for testing disease modifying therapies that may slow down or halt the progression of these disorders for which there is currently no cure. Additionally, RBD is today known to be present in more than 50% of patients with narcolepsy-cataplexy, and can also be triggered by the most commonly prescribed antidepressant medications (e.g. SSRIs, venlafaxine). RBD has been documented as occurring, with variable frequency, with virtually every category of neurologic disease and has also helped expand the field of dream research. The volume Editors have pioneered scientific and clinical advances in the field and, partnering with leading sleep clinicians and researchers on this book, have produced an invaluable guide to specialists in sleep medicine, neurology, psychiatry and psychology. There are also strong contributions in this book by leading basic science researchers, and so this book should also appeal to neuroscientists. As stated in the book, "RBD is situated at a strategic and busy crossroads of sleep medicine and the neurosciences. RBD offers great breadth and depth of research opportunities, including extensive inter-disciplinary and multinational research opportunities...RBD is an 'experiment of Nature' in which knowledge from the study of motor-behavioral dyscontrol during REM sleep, with dream-enactment, has cast a broad and powerful light on a multitude of Central Nervous System disturbances, their evolution, and their comorbidities."

The Neurology of Eye Movements provides clinicians with a synthesis of current scientific information that can be applied to the diagnosis and treatment of disorders of ocular motility. Basic scientists will also benefit from descriptions of how data from anatomical, electrophysiological, pharmacological, and imaging studies can be directly applied to the study of disease. By critically reviewing such basic studies, the authors build a conceptual framework that can be applied to the interpretation of abnormal ocular motor behavior at the bedside. These syntheses are summarized in displays, new figures, schematics and tables. Early chapters discuss the visual need and neural basis for each functional class of eye movements. Two large chapters deal with the evaluation of double vision and systematically evaluate how many disorders of the central nervous system affect eye movements. This edition has been extensively rewritten, and contains many new figures and an up-to-date section on the treatment of abnormal eye movements such as nystagmus. A major innovation has been the development of an option to read the book from a compact disc, make use of hypertext links (which bridge basic science to clinical issues), and view the major disorders of eye movements in over 60 video clips. This volume will provide pertinent, up-to-date information to neurologists, neuroscientists, ophthalmologists, visual scientists, otalaryngologists, optometrists, biomedical engineers, and psychologists.

A comprehensive book that reviews advances in ocular motor research on topics of general interest, rare, specialized or unique conditions, and pertinent basic neuroscience. A rare collection with contributions from basic neuroscientists, neurologists, and ophthalmologists. Includes dedicated chapters on mathematical models, pharmacotherapy, neuromodulation, motion perception, visual influence on eye movement, physiology of strabismus, and microsaccades. This book is dedicated to David Robinson - one of the pioneers of contemporary ocular motor and vestibular neuroscience.

This fourth edition of Clinical Management of Binocular Vision uses the past five years of research studies and literature to provide an accurate look at today’s diagnosis and treatment of binocular vision. Written with an emphasis on proper evaluation, diagnosis, and treatment, each condition is covered in-depth and includes background information, symptoms, case analysis, and management options. This edition also includes the latest information on new vision therapy equipment. Easy to read and understand, this book is ideal for faculty when designing courses, students studying these topics for the first time, or established practitioners looking for a practical, easy-to-use reference on accommodative, ocular motility, and nonstrabismic vision anomalies.

This text explains eye movement disorders in a concise yet comprehensive manner, which makes it a useful reference book and a learning text for anyone trying to master the intricate relationship between eye movement disorders and their underlying neuroanatomy and pathophysiology. Its easy-to-read and user-friendly approach will appeal to specialists in Ophthalmology, Neurology, and Neurosurgery who need a rapid reference on less familiar clinical problems.