One important means to understanding normal cognitive functions is the study of the breakdown of these functions following brain damage. This book provides reviews of major case studies dealing with the breakdown of visual perception and recognition, including the disorders of motion vision, colour vision, perceptual integration, perceptual classification, recognition of particular categories of object, semantic access from vision (in optic aphasia), and recognition impairments with relative sparing of imagery. The cases are discussed in the light of studies that have followed since, and the chapters provide a context in which the contributions of the case studies can be evaluated.

Understand and meet your patients' eyewear needs with the reference that covers every aspect of dispensing ? from basic terminology to frame selection to eyewear fitting, adjusting, and repairing. System for Ophthalmic Dispensing, 4th Edition, provides a step-by-step system for properly fitting and adjusting eyewear, including the nuances of lens selection, making it an ideal resource both for students who are just learning about dispensing and practitioners who want to keep their skills up to date. Thorough discussions of every topic and hundreds of newly revised and enhanced review questions make this a one-stop educational and clinical resource for today's eyecare professionals. Explains the "how" and "why" behind lens selection to help you better understand and meet the vision needs of those you serve.   Includes in-depth discussions of all types of lenses, including multifocal, progressive, absorptive, safety, recreational, aspheric, high index, and lens coatings.  Provides updated coverage of the latest dispensing procedures and equipment.   Discusses the use of spectacle lenses for the control of myopia.   Contains more than 700 high-quality figures demonstrating how to adjust frames, the optics of lenses, and how light travels through lenses. Photos are all taken from the perspective of the person who is adjusting the frame.  Features more than 600 interactive review questions along with answers, explanations, and worked problems-all newly revised for this edition.  An eBook version is included with purchase. The eBook allows you to access all of the text, figures and references, with the ability to search, customize your content, make notes and highlights, and have content read aloud. 

The field of contact lenses continues to evolve at a rapid pace, with new optical designs and vision correction options continually being developed. Additionally, the rapid expansion of clinical instrumentation offers eye care practitioners a wide choice of investigative techniques for assessing in-eye contact lens performance and diagnosing adverse reactions. Now in its fourth edition, Contact Lens Practice has been thoroughly updated and revised to capture these developments and more, and translate them into an organised and easily digestible resource. Written and edited by award-winning author, researcher, and lecturer, Professor Nathan Efron, this title provides a comprehensive, evidence-based overview of the scientific foundations and clinical applications of contact lens fitting. The text has been refreshed by the inclusion of five new authors - a mixture of scientists and clinicians, all of whom are at the cutting edge of their specialty. Serves as an essential companion and guide to current thinking and practice in the content lens field, ideal for use by optometrists, ophthalmologists, orthoptists, opticians, students, and contact lens industry professionals. Presents subject matter in a clear and logical format to allow the reader to quickly identify and comprehend key information. Features highly illustrated chapters in full colour, helping the reader to visualize core concepts. Includes completely rewritten chapters, by new authors, on scleral and corneo-scleral contact lenses, high ametropia, therapeutic applications, post-surgical lens fitting, and practice management. A new chapter on Post-Surgery Management consolidates core information on post-operative management involving contact lenses. Enhanced eBook version included with purchase. Your enhanced eBook allows you to access all of the text, figures, and references from the book on a variety of devices.

This invaluable text covers the successful management of dry eye conditions very succinctly and in a way relevant for the modern practitioner or student. Setting goals and treatment objectives, and brimming with sound practical advice, it adopts a clinical decision-making approach to the subject. Management and treatment options are prioritised and evidence-based. An essential pocket reference for all students and practitioners treating dry eye conditions including ophthalmologists, optometrists, dispensing opticians, ophthalmic nurses and all those involved in the management of these challenging conditions. Clear discussions explain how to set priorities and establish guidelines for treatment based on the patient's presenting symptoms. No other book presents a succinct, practical guide to treatment and successful management of dry eye. All factors that can cause dry eye conditions are addressed, looking beyond the most common contact lens complications to factors such as disease, the environment, and equipment worn by the patient. Clinically relevant approach makes this unique resource extremely useful in the patient-care setting. Practical advice outlines succinct methods for the most effective management of dry eye conditions. Comprehensive information is presented in a quick-reference, synoptic format that's convenient and easy-to-use. Well-referenced chapters present evidence-based information and point to original sources for further research and investigation. Both common and severe dry eye conditions are covered, prioritized so clinicians can see the treatment implications associated with each. Clear illustrations and line diagrams show key visual concepts and help readers see the real-world clinical applications.

From basic eye care services to visual performance training, this evidence-based resource explores a range of sports vision services, including assessment and treatment procedures, outcome expectations, and applications to a variety of sports. Optometrists, ophthalmologists, and sports medicine practitioners will find a thorough review and discussion of the role of vision care in an athlete's performance, as well as practical recommendations for applying current research findings to clinical practice. Contains practical, clinically oriented chapters on visual assessment, prescribing, and ocular injuries in athletes. Takes a task analysis approach allowing the reader to develop solid reasoning skills and evaluate information needed for clinical practice. Includes a new chapter on Assessment and Management of Sports-Related Concussion. Features visual aids throughout including photographs, tables, and boxes to help clarify and visualize important concepts. Addresses sports vision training approaches and updated digital options reflecting the collaboration between athletic trainers, optometrists, and ophthalmologists in helping optimize vision in athletes.

This book contains all oral presentations, posters, and workshop transactions of the 28th Meeting of the European Strabismological Association that took place in Bergen, Norway. The highlight of the meeting is the ESA-lecture what can eye muscle studies tell us about strabismus by Prof. Gunnar Lennerstrand from Stockholm. All 60 oral presentations of the following sessions are described: screening, amblyopia, eye movements, vision, refraction, nystagmus, stereopsis, exotropia, vergence problems, refractive surgery, cataract and strabismus, strabismus surgery, botulinum toxin, EMG, oblique muscles, paralytic strabismus, thyroid, duane syndrome and varia.

This book is a comprehensive account of the most recent developments in modern ophthalmic optics. It makes use of the powerful matrix formalism to describe curvature and power, providing a unified view of the optical and geometrical properties of lenses. This unified approach is applicable to the design and properties of not only spectacle lenses, but also contact and intraocular lenses (IOL). The newest developments in lens design, manufacturing and testing are discussed, with an emphasis on the description of free-form technology, which has surpassed traditional manufacturing methods and allows digital lenses to be specifically designed with the unique requirements of the user. Other important topics which are covered include modern lens materials, up-to-date lens measuring techniques, contact and intraocular lenses, progressive power lenses, low vision aids, ocular protection and coatings. Providing a broad overview of recent developments in the field, it is ideal for researchers, manufacturers and practitioners involved in ophthalmic optics.

A practical, accessible and insightful handbook on reading the eye. The human eye is a blueprint of the bodies genetically inherited strengths and weaknesses: a comprehensive health profile that allows one to make informed dietary and lifestyle choices that fully support one's unique constitution. This book is a guide to the often-misunderstood subject; a practical manual that can be easily used by medical professionals and interested enthusiasts alike. Complete with high quality photographs, charts and detailed case studies, this essential book should be a staple on every modern health care practitioner's bookshelf. Taking a holistic approach, author Sarah Donoghue explores the subject of iridology from a scientific, physical and emotional perspective. It allows readers to safely examine the iris and make confident assessments, as well as formulate individualised herbal, dietary and lifestyle interventions based on information gleaned from the depths of the endlessly fascinating iris!

Practical and portable, Kanski's Synopsis of Clinical Ophthalmology, 4th Edition, distills the key information from the bestselling Clinical Ophthalmology: A Systematic Approach into a convenient, easy-to-follow volume. Perfect for quick reference, this concise resource contains "need to know" information highlighted by more than 900 high-quality illustrations and clinical photographs with clear explanations. New author Dr. John Salmon provides a fresh approach to critical content, ensuring that this manual remains an ideal on-the-go reference as well as an efficient study guide for examinations. Covers the essential information you need to effectively diagnose and manage a comprehensive range of ophthalmic disorders, using a concise format that makes it easy to quickly grasp the "must-know" aspects of each condition. Keeps you up to date with the latest advances in the treatment of glaucoma, the use of biological agents in the treatment of uveitis, genetic advances in hereditary retinal dystrophies, anti-VEGF agents for macular disease, and OCT/OCTA imaging. Includes a new chapter covering examination techniques, along with sweeping content updates on key topics. Features hundreds of high-quality images: diagnostic imaging, including OCT/OCTA; surgical and clinical photos depicting presenting signs and symptoms as well as surgical techniques; and medical illustrations that convey important anatomical considerations. Enhanced eBook version included with purchase. Your enhanced eBook allows you to access all of the text, figures, and references from the book on a variety of devices.

In the last few years there have been many papers in vision science journals about visual factors in dyslexia, but these findings have not been widely disseminated to the professionals who care for people with dyslexia. Dyslexia and Vision aims to provide a straightforward summary of work in this field for teachers, educational psychologists, child psychologists, and paediatricians. The primary purpose of the book is to provide these professionals with the information they need in order to offer balanced, insightful advice for people in their care. Eyecare professionals themselves are often bewildered by the plethora of claims and anecdotes in this field. A secondary purpose of the book is to provide, in appendices, a balanced "evidence-based" review of the literature for eyecare professionals.

Providing the ocular anatomy and physiology content needed for a thorough comprehension of this complex field, Clinical Anatomy and Physiology of the Visual System, 4th Edition, offers a solid foundation for recognizing and understanding specific clinical situations and how they relate to anatomic structure. This concise, well-referenced resource covers the clinical anatomy of the eye, its adnexa and visual pathways, and histologic information-the information you need for success in coursework, certification exams, and clinical practice. Features vivid, full-color illustrations that help you visualize the clinical anatomy of the eye along with the cellular physiology behind diseases and disorders of the visual system. Emphasizes clinical application throughout, helping you better understand the processes that occur in disease and dysfunction. Clinical Comment sections offer a unique focus on clinical situations, conditions, diseases, and treatments. Contains new OCT, OCTA, MRI, and CT images that demonstrate clinical views of ocular anatomy. OCT technology is incorporated to describe the retinal layers, newly described anatomical components of the vitreous, corneal and anterior chamber angle anatomy, and the choroidal and retinal vasculature. Covers current topics such as genes essential in eye development, scleral and choroidal changes occurring with myopia progression, limbal stem cells, age-related macular degeneration and VEGF therapies, and microinvasive glaucoma surgical procedures. Includes updated concepts and terminology: Edinger Westfall preganglionic cells, sensory innervation to the cornea, knees of Wilbrand, intrinsically photosensitive retinal ganglion cells, and more. Provides expert coverage by a practicing optometrist, giving you a practical framework for recognizing and understanding clinical situations, problems, and treatments. Enhanced eBook version included with purchase. Your enhanced eBook allows you to access all of the text, figures, and references from the book on a variety of devices.

Endophthalmitis refers to the inflammation of the intraocular tissues and fluids of the eye and can be non-infectious or caused by bacterial, fungal or parasitic infection. It can be classified as exogenous (post-operative, post-traumatic or as a complication of a corneal ulcer) or endogenous (secondary to hematogenous spread from another infected site). This book discusses the clinical manifestations, relevance of diagnosis, and involved species of fungal endophthalmitis. It also examines anti-vascular endothelial growth factor medications; prevention and treatment of postoperative endophthalmitis; and a pharmacokinetic review of antibiotics used in the treatment of endophthalmitis.

Age-related macular degeneration (AMD) is the leading cause of blindness in individuals older than 65 years of age. The authors of this book discuss the role of genetics, sunlight, diet, cardiovascular factors, smoking and alcohol as possible risk factors for AMD. Furthermore, the dry form is more common and accounts for about 85-90% of AMD patients in the USA, while Japanese AMD patients predominantely progress to wet-form or polypoidal choroidal vasculopathy (PCV). The function of a serine protein gene, HTRA1, in wet-form AMD patients is explored in detail. Conversely, the final chapter evaluates the therapeutic effects of high omega-3 fatty acids as anti-inflammatory agents in dry AMD patients. The preliminary findings indicate a promising therapeutic regime for dry AMD and perhaps for other retinopathies as well.

Optical lenses have many important applications, from telescopes and spectacles, to microscopes and lasers. This concise, introductory book provides an overview of the subtle art of lens design. It covers the fundamental, optical theory, and the practical methods and tools employed in lens design, in a succinct and accessible manner. Topics covered include first-order optics, optical aberrations, achromatic doublets, optical relays, lens tolerances, designing with off-the-shelf lenses, miniature lenses, and zoom lenses. Covering all the key concepts of lens design, and providing suggestions for further reading at the end of each chapter, this book is an essential resource for graduate students working in optics and photonics, in addition to engineers and technicians working in the optics and imaging industries.

Covering all the knowledge and skills needed for everyday duties as well as success on certification and recertification exams, The Ophthalmic Assistant, 11th Edition, is an essential resource for allied health personnel working in ophthalmology, optometry, opticianry, and other eye care settings. Drs. Harold A. Stein, Raymond M. Stein, and Melvin I. Freeman are joined by new editor Dr. Rebecca Stein and several new contributing authors who provide practical, up-to-date guidance on ocular diseases, surgical procedures, medications, and equipment, as well as paramedical procedures and office management for today's practice. This outstanding reference and review tool provides essential knowledge and guidance for ophthalmic assistants, technicians, and technologists as critical members of the eye care team. Keeps you up to date with coverage of key topics such as topography-guided PRK, cataract surgery with multifocal IOLs to treat presbyopia, and OCT and OCTA, as well as the latest information on basic science, new testing procedures and equipment, and two new chapters on refractive surgery and eye banking. Provides full-color visual guidance for identification of ophthalmic disorders, explanations of difficult concepts, and depictions of the newest equipment used in ophthalmology and optometry-more than 1,000 images in all. Features more than 400 interactive multiple-choice review questions that test your knowledge and understanding of key concepts. Includes a bonus color-image atlas that tests your clinical recognition of disease and disorders of the eye. Contains convenient quick-reference appendices with hospital/practice forms for more efficient patient record keeping, conversion tables, and numerous language translations, plus information on ocular emergencies, pharmaceuticals, and more. Enhanced eBook version included with purchase. Your enhanced eBook allows you to access all of the text, figures, and references from the book on a variety of devices.

Clinically-oriented and up-to-date, Dry Eye Diseases focuses on the latest diagnostic techniques, management guidelines, and treatment options for dry eye disorders. This consolidated resource provides guidance on the clinical assessment of patients presenting with dry eye symptoms as well as a global perspectives on the use of FDA and off-label products. Practicing and trainee ophthalmologists and optometrists will find this an indispensable resource for understanding this complex disorder. Covers a range of topics, including clinical assessment, pathophysiology, the link between dry eye and system disease, and the use of FDA and off-label products as treatment options for dry eye diseases. Includes a section devoted to the presence of dry eye disease in specific populations, including patients presenting with other ocular conditions, systemic pain conditions, graft-versus-host disease, Sjoegren's syndrome, and meibomian gland dysfunction. Addresses the challenges associated with treating ocular pain not responsive to traditional dry eye disease treatments. Features concise chapters from a team of international chapter authors, providing global perspectives on this common disorder. Consolidates today's available information on this timely topic into a single, convenient resource

The Seventh International Conference series on Vision in Vehicles was held in Marseilles in September 1997. This event was run in conjunction with the Applied Vision Association, the Ergonomics Society and with the participation of INRETS (Institut National de Recherche sur les Transports et leur Securite).
This volume presents the selected and edited proceedings. The papers at the conference were ordered into sessions, from driver-specific aspects to interfacing with the new in-vehicle systems. These sessions are mirrored in the ordering of the chapters. The conference is long established and regularly draws representatives from the key international research centres working in this popular and diverse transportation area.

The Eye: Basic Sciences in Practice provides highly accessible, one-stop coverage of all the essential basic science required by today's ophthalmologists and optometrists in training. It is also core reading for those embarking on a career in visual and ophthalmic science, as well as an invaluable, current refresher for the range of practitioners working in this area. Building on previous success, this fifth edition has been fully revised in line with current curricula, key research developments and clinical best practice. It succinctly incorporates critical developments in fast-moving fields related to the eye and vision, including genetics, pharmacology, microbiology, immunology, pathology, neurophysiology, neuroanatomy and imaging. Topical coverage includes: Major advances in the search for new genes underpinning disease in ophthalmology The emergence of new infections such as Ebola, Zika and COVID-19 The importance of the gastrointestinal tract as an immune organ and its functional dependence on the microbiome Key aspects of melanopsin, melatonin and new ways of light sensing Also, (print purchasers) benefit from access to the complete, fully searchable electronic text, with integrated video and other bonus materials to further explain and expand on key concepts. This combines to make The Eye a more flexible, comprehensive and engaging learning package than ever before. The only all-embracing textbook of the basic sciences suitable for trainee ophthalmologists, optometrists and vision scientists. Utilising an attractive page design with over 300 colour drawings and 200 photographs this is an attractive and accessible text to learn from. The text presents in a readable form an account of all the basic sciences necessary for an understanding of the eye - anatomy, embryology, genetics, biochemistry, physiology, pharmacology, immunology, microbiology and infection and pathology.

Completely revised and updated, you will benefit from new and rewritten sections on: axial magnification Jackson Cross Cylinder tests retinoscopy reflex motions field of view the optics of indirect ophthalmoscopy optical aberrations diffractive lenses the Doppler shift lasers and the similarities and differences of Gaussian laser beams versus the propagation of light from a point source plus, a new appendix on angles and basic trigonometry. Although not a matrix optics text, matrices are used extensively in the chapters on spherical systems and off-axis aspects of astigmatism. In particular, the matrix treatment of astigmatism serves as a foundation for the recently developed, much improved statistical techniques that deal with refractive corrections and astigmatism in all its aspects. * Emphasizes conceptual understanding and development of optical intuition * Uses the vergence-dioptric power-wavefront approach * Helpful review for optometry boards and qualifying examinations

It is well-known that the most common and largely used assistive technology among the visually impaired community is the white cane. Many technologies have been proposed as alternative assistive devices to improve the autonomous mobility of people affected by visual diseases. Nevertheless, whatever is the physical quantity used by these active assistive technologies - mainly ultrasonic or optical sensors - they present many limitations and none of them adequately meets the international guidelines defined for the electronic travel aids and the specific requests coming from the visually impaired community. The first chapter of this book aims to provide an overview of the existing travel aids for people affected by visual diseases, discussing pros and cons of available technologies. The aim of the next chapter is to convince the reader that solutions based on mobile visual aid systems will answer a critical societal challenge. Chapter Three explores the use of electromagnetic technology in support of visually impaired athlete runners. Chapter Four describes the present state of mobile technologies development taking into consideration the point of view of visually impaired people. Finally, the goal of the concluding chapter is to relate how the audio-description has been produced as a communication accessibility resource.

Designed for students and professionals preparing for the ABO certification exam or wishing to quickly brush up on optical formulas, this easy-to-use workbook contains optical formulas, definitions, and walk-through problems with practical examples throughout. Rather than searching through dozens of optics books, readers will find all relevant information here in one source. Coverage includes everything from sine, cosine and tangent to resultant prism and resolving prism to polarized filters - and much more! Features a user-friendly format that facilitates the review process, with practical examples throughout. Provides a convenient review of optical formulas and basic math problems. Begins each chapter with a brief discussion of the topic, then proceeds with exercises and examples; answers are provided at the end of the book. New work-text design allows the reader to complete practice exercises within the book and section being studied. More complex formulas include "how to use the calculator" boxes, and multiple choice review sections have been added to the sections. Advanced exercises such as non-formula exercises are now included throughout.

2013 Reprint of 1950 Edition. Full facsimile of the original edition, not reproduced with Optical Recognition Software. American writer Faber Birren devoted his life to color and it's effects on human life. After writing around 25 texts on the topic, it would be safe to say his work is considered highly among color experts and psychologists around the world. Birren's work has a strong focus on linking how humans perceive colors to how it makes them react. He writes, "Good smelling colors are pink, lilac, orchid, cool green, aqua blue." Birren explores the work of several physicians, scientists and doctors, mainly the German psychoanalyst and physician Felix Deutsch, whose findings throw important light not only on medical practice with references to color but on the whole psychology of color. Birren states that if a person prefers warmer colors such as hues of red and oranges, they are likely to me more aware of their social environment. He labels these as "warm color dominant subjects." On the other hand, those preferring cooler colous such as blues and greens, are categorized generally as "cold color dominant subjects" and are recognized as finding it challenging to adapt themselves to new environments and situations." By splitting people into separate categories, based on their color preferences, Birren finds himself able to establish a greater understanding of their personalities and characteristics. One experiment Birren explores in his text, courtesy of Kurt Goldstein, involves a subject standing before a black wall with his eyes shut and arms outstretched to touch the wall in front. When the subject is influenced by a warm color such as the color red, his arms deviate away from each other, whereas when under the influence of a cooler colour such as green or blue, even though the reaction is a subtle one, the subject will move his arms closer together. I find this experiment, simple as it is, to be fascinating in highlighting the strong effects colors have on our minds and bodies. As well as distinguishing the differences in peoples' character through his use of color psychology, Birren also touches on the effects colors can have on the mentally ill. This section was the most interesting and involved a series of complex experiments such as discovering which neurological disorders were linked to which colors. Courtesy of the work by Hans Huber, it was proven that patients suffering manic tendencies preferred the color red, a symbol of blood and anger. Hysterical patients were more sensitive to green, "perhaps as an escape," the color linked to paranoid subjects was found to be brown and schizophrenics are sensitive to yellow. Birren states that persons troubled with "nervous (neurotic) and mental (psychotic) disturbances are greatly affected by color and are responsive to it." Therefore color becomes much more significant to them, and affects them in a completely different way than those without such neurological disturbances. Chapter 12 "Neurotics and Psychotics" is the most compelling in the text as it relates to my dissertation topic. After struggling to find texts specific to my research subject, this text and its contents came as a welcomed discovery and I will be referring to Birren's work throughout my further research.

Completely revised, updated, and redesigned, this classic dictionary by Dr. Michel Millodot continues to be an essential resource for all optometrists in training and in practice, as well as residents in ophthalmology. It is also a crucial source of information for anyone involved in vision science and in the optical industry. It now includes many new entries on pathology, pharmacology, investigative techniques, visual perception, optics and contact lenses. This edition presents all of the features that have made it so successful in the past, such as succinct, understandable definitions, comprehensive tables and illustrations, clinical advice, and extensive cross-references. Uniquely blending the best features of a textbook, a dictionary, and a practical handbook, Dictionary of Optometry and Vision Science remains a cornerstone for all those providing eye care, engaged in vision science, or entering the optical industry. Now includes definitions of over 5600 terms, as well as 90 tables and 253 illustrations that enhance understanding of many of the definitions. Expert ConsultT eBook version included with purchase. This enhanced eBook experience allows you to search all of the text, figures, and references from the book on a variety of devices.