Essentials Of Refraction
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| Author | : Ajay Kumar Bhootra |
| Publisher | : Jaypee Brothers Medical Publishers |
| Total Pages | : 146 |
| Release | : 2019-06-30 |
| Genre | : Medical |
| ISBN | : 9352708628 |
Retinoscopy is an eye exam that determines the refractive error of the eye (long sighted, short sighted, astigmatism). A refraction test indicates the strength of the prescription needed for glasses or contact lenses. The new edition of this book provides a concise overview of clinical refraction. Presented in an easy to read format, it is divided into two main sections. The first part explains basic clinical procedures for routine refraction, beginning with an introduction to instruments and the procedure, followed by aspects of the test for different disorders including myopia (short sightedness), astigmatism, keratoconus and refraction in children. Section two provides in depth discussion on retinoscopy and correct use of the retinoscope. The second edition has been fully revised and updated to explain the latest advances in the field, and is further enhanced by clinical images and figures. Key points Practical guide to clinical refraction and retinoscopy Fully revised and updated second edition Explains basic procedures and instruments for refraction test and refraction in different ophthalmic disorders Previous edition (9789351520634) published in 2014
| Author | : William J. Benjamin |
| Publisher | : Elsevier Health Sciences |
| Total Pages | : 2711 |
| Release | : 2006-10-13 |
| Genre | : Medical |
| ISBN | : 0702038970 |
Now updated and expanded to cover the latest technologies, this full-color text on clinical refraction uses an easy-to-read format to give optometry students and practitioners all the important information they need. Also covers a wide range of other aspects of the eye exam, including anterior and posterior segment evaluations, contact lens, ocular pharmacology, and visual field analysis. Four new chapters cover wavefront-guided refraction, optical correction with refractive surgeries, prosthetic devices, and patients with ocular pathology. - Offer precise, step-by-step how-to's for performing all of the most effective refractive techniques. - Presents individualized refractive approaches for the full range of patients, including special patient populations. - Contriubtors are internationally recognized, leading authorities in the field. - New full-color design with full-color images throughout. - Completely updated and expanded to include current technologies. - A new chapter on Optical Correction with Refractive Surgeries, including keratoplasty, traditional refractive surgeries (e.g. LASIK and PRK), crystalline lens extraction with and without pseudophakia, the new presbyopic surgery, etc. - A new chapter on Wavefront Guided Refraction provides information on the advantages and limitations the Hartmann-Shack Method for objective refraction plus aberrometry and the refraction and the use of in the correction of the eye with spectacles, contact lenses, and refractive surgery. - A new chapter on Patients with Ocular Pathology reflects the most current knowledge of patients with ocular pathologies. - Provides information on Optical Correction with Prosthetic Devices, including corneal onlays, stromal implants, phakic intraocular lenses, etc. - Includes new chapters and/or discussions on such topics as: Aberrations of the Eye, Refractive Consequences of Eye Pathology, Diagnosis and Treatment of Dry Eye, Diagnosis of Pathology of the Anterior Segment, Diagnosis of Glaucoma, and Diagnosis of Pathology of the Posterior Segment. - Visual Acuity chapter expanded to include the effect of refractive error on visual acuity and statistics on how much of a change in visual acuity is significant. - Objective Refraction, Corneal Topography, and Visual Field Analysis chapters include the addition of new electro-optical and computer techniques and equipment. - Chapters on Multifocal Spectacle Lenses and Contact Lenses now cover newer progressive addition lenses and contact lenses that are now on the market. - Electrodiagnosis chapter revised to take a more clinical approach.
| Author | : Zhu-Tam, Lily |
| Publisher | : IGI Global |
| Total Pages | : 409 |
| Release | : 2022-02-18 |
| Genre | : Medical |
| ISBN | : 1799880451 |
There is a need for comprehensive books that provide crucial information in a clear and direct manner, particularly in the medical field. Currently, there are limited resources available to students and clinicians that provide step-by-step procedures with pictures on how to examine the eye in the pediatric population. The Pediatric Eye Exam Quick Reference Guide: Office and Emergency Room Procedures is a clinical procedure book to provide step-by-step pediatric eye care examination techniques and is an important addition to the field of eye care. The chapters are written by leading pediatric optometrists and ophthalmologists in the field. Years of academic and clinical experiences from schools of optometry, hospital-based eye care, and private practice are all presented in a user-friendly format with clinical pearls and insights that will help any clinician perform a pediatric eye exam easily and efficiently. Covering a range of critical topics such as pupil examination, visual field testing, refraction, and ocular emergencies and providing pictures, it is ideal for all students, residents, academicians, trainers, and novel and seasoned clinicians who are interested in learning how to examine a pediatric patient and staying on top of the latest pediatric eye care procedures.
| Author | : Jack T. Holladay |
| Publisher | : SLACK Incorporated |
| Total Pages | : 164 |
| Release | : 2007 |
| Genre | : Medical |
| ISBN | : 9781556428012 |
Good vision is more than 20/20 on a Snellen visual acuity chart. The modern ophthalmologist understands that contrast sensitivity, near and distance vision, performance under light and dark conditions, and the brain's interpretation of input from the sensory apparatus, are all important elements in patients' quality of vision. In Quality of Vision: Essential Optics for the Ophthalmic Surgeon, ophthalmologist and optics expert Dr. Jack T. Holladay explores the elements of vision that lie beyond Snellen testing. He explains the Quality of Vision addresses: - Measuring and treating astigmatism in corneal and IOL surgery - The importance of correcting spherical aberration in cataract and refractive surgery - IOL calculations after refractive surgery - Promising approaches to the correction of presbyopia - Other practical topics the clinician can use every day Recognized as the leader in ophthalmic optics, Dr. Holladay incorporates practical aspects of daily practice into each chapter as he expertly explains the scientific principles, mathematical formulas, and theories behind these important issues. Additionally, Quality of Vision includes numerous color illustrations to provide visual representations of the text's key points. Dr. Holladay discusses what's on everyone's mind: - How to take the best measurements and perform the best calculations to ensure good outcomes in cataract and refractive surgery - How neural adaptation can improve outcomes - How today's excimer laser systems deliver excellent optical correction, and why tomorrow's systems will perform even better Quality of Vision: Essential Optics for the Ophthalmic Surgeon is the most complete and practical reference for ophthalmologists looking to increase their understanding of optical physics and their ability to deliver good vision to their patients after cataract and refractive surgery.
| Author | : Andrew William Keirl |
| Publisher | : Elsevier Health Sciences |
| Total Pages | : 354 |
| Release | : 2007-10-10 |
| Genre | : Medical |
| ISBN | : 0750688890 |
It provides a comprehensive and clinically based guide to visual optics. With its suggested routines and numerous examples, this new book offers a straightforward "how to approach" to the understanding of clinical optics, refraction and contact lens optics. Designed for easy access, it presents information in a concise format that highlights key, need-to-know points. Part 1 addresses the basic visual optics of the eye along with emmetropia, ametropia and the correction of ametropia with spectacle lenses. Part 2 turns to the optics of contact lenses and the use of contact lenses in vision correction. Numerous worked examples based on real examination questions Practical and user friendly text Over 190 clear line diagrams An essential passport to examination success and a valuable quick reference for practitioners
| Author | : William Harvey (MCOptom.) |
| Publisher | : Elsevier España |
| Total Pages | : 164 |
| Release | : 2005 |
| Genre | : Medical |
| ISBN | : 9788445815991 |
Eye Essentials is a major new series which provides authoritative and accessible information for all eye-care professionals, whether in training or in practice. Each book is a rapid revision aid for students taking higher professional qualifications and a handy clinical reference guide for practitioners in busy clinics. Highly designed with synoptic text, handy tables, key bullet points, summaries and stunning full-colour illustrations, the books have rapidly established themselves as the essential eye-clinic pocket books. Authoritative information from world opinion leaders Instant access to essential information Concise, colourful and clinical The latest information, the best illustrations Clinical pearls, practice pitfalls and clear action icons Eye Essentials offer all eye-care students and practitioners the key points at a moment's notice. Practical advice Evidence-based Highly designed, modern with boxes, tables, synoptic text Very practical - with highlighted advice sections for patients, handy tables White-coat-pocket book Key opinion leaders for authors - not contributed so consistency of style and presentation Competitively priced Pulls the information together in one place very briefly Well illustrated
| Author | : Swan Moses Burnett |
| Publisher | : |
| Total Pages | : 78 |
| Release | : 1904 |
| Genre | : Eye |
| ISBN | : |
| Author | : David G. Hunter |
| Publisher | : SLACK Incorporated |
| Total Pages | : 146 |
| Release | : 2010 |
| Genre | : Medical |
| ISBN | : 1556429274 |
The popular optics review manual, Last-Minute Optics: A Concise Review of Optics, Refraction, and Contact Lenses, has been revised and updated into a Second Edition. This unique resource boils down the overwhelming subject matter of clinical optics and refraction, helping the ophthalmologist cover the essentials in a single review manual. The content is based upon the practical experience of two clinically active experts who lecture on ophthalmic optics around the world. This updated Second Edition by Drs. David G. Hunter and Constance E. West includes new questions added to selected chapters and a new chapter covering refractive surgery, as well as a key chapter that helps you evaluate patients with symptoms related directly to optical or refractive concerns. The complex concepts of optics are revealed in easy-to-understand explanations enhanced by simple illustrations. Last-Minute Optics, Second Edition allows you to test your knowledge while increasing your understanding of optics. Designed in a clear, concise, question-and-answer format, this book allows for self-assessment and a chance to test your understanding before you read the answer. Features of the Second Edition: * Written in a light and approachable style to make optics accessible and understandable * Unique question-and-answer format allows for self-assessment while studying to identify areas where more work is needed * Perfect for limited study time * Includes real-life examples that are clinically relevant * Numerous practical tips to help enhance clinical practice * Includes 223 questions and answers Whether you're an ophthalmologist, ophthalmic technician, resident or student, reviewing the optics facts and concepts is easier with Last-Minute Optics: A Concise Review of Optics, Refraction, and Contact Lenses, Second Edition.
| Author | : David Abrams |
| Publisher | : |
| Total Pages | : 324 |
| Release | : 1993 |
| Genre | : Medical |
| ISBN | : |
Presents the theory and practice of the correction of defects in the optical system of the eyes and their associated muscles. Includes coverage of contact lenses, methods of objective testing, lens implantation after cataract surgery, and contrast sensitivity testing for visual acuity.
| Author | : Naomi Hughes |
| Publisher | : Page Street YA |
| Total Pages | : 234 |
| Release | : 2019-11-05 |
| Genre | : Young Adult Fiction |
| ISBN | : 1624148913 |
After an attack on earth, all reflective surfaces become weapons to release monsters, causing a planet-wide ban on mirrors. Despite the danger, the demand rises, and 17-year-old Marty Callahan becomes a distributor in an illegal mirror trade—until he’s caught by the mayor's son, whose slate is far from clean. Both of them are exiled for their crimes to one of the many abandoned cities overrun by fog. But they soon realize their thoughts influence their surroundings and their deepest fears begin to manifest. With fast pacing and riveting characters, this is a book that you’ll finish in one sitting.
