Download or read book Transparency and Refraction of the Cornea written by János Fehér and published by Akademiai Kiado. This book was released on 1996-01 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transparency and Refraction of the Cornea written by Fehér János (szemorvos) and published by . This book was released on 1996 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Understanding the Molecular Basis of Transparency and Refraction in the Eye Lens written by Domarin Khago and published by . This book was released on 2016 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Transmission of the Ocular Media written by Edward A. Boettner and published by . This book was released on 1962 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: The spectral transmittance of ultraviolet, visible, and near infrared light through the ocular media of humans has been measured. Using freshly enucleated eyes, the transmittances of each component part (cornea, aqueous humor, lens, vitreous humor) were determined for the wavelength range from 0.22 to 2.8 microns. To date 9 eyes have been measured, ranging in age from 4 weeks to 75 years. Two types of measurements were made: the first to measure the total light transmitted (direct and scattered) at each wavelength and the second to measure the percent transmittance of that light passing directly through the various media without absorption or scattering. The results show that: (a) the transmission of ultraviolet radiation decreases with the age of the eye; (b) the transmission of infrared radiation appears to be independent of the age; and (c) the maximum total transmittance of the whole eye, about 81 percent, is obtained in the region from 600 to 850 millimicrons.

Download or read book Essentials of Refraction and the Diseases of the Eye written by Edward Jackson and published by . This book was released on 1892 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Essentials of refraction and of diseases of the eye written by Edward Jackson and published by . This book was released on 1906 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Essentials of refraction and the diseases of the eye written by Edward Jackson and published by . This book was released on 1894 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cornea Handbook written by Bill Trattler and published by SLACK Incorporated. This book was released on 2010 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cornea Handbook is your comprehensive, reference for accessing the fundamentals of corneal conditions, surgeries, and imaging technologies. Incorporating relevant information and color images, with an easy-to-understand style, this handbook is an indispensable resource for all eye care practitioners. Drs. William B. Trattler, Parag A. Majmudar, Jodi I. Luchs, and Tracy S. Swartz have written Cornea Handbook with both the novice and advanced clinician in mind. Packed with essential information on everything from basic anatomy to surgical complications, readers will find this handbook full of valuable knowledge and helpful images. Some topics covered include: * Basic anatomy and physiology * Corneal infection, inflammation, and ocular surface disorders * Metabolic and congenital disorders * Corneal dystrophies and degenerations * Traumatic and chemical injuries * Diagnostic tools with clinical examples * Surgical procedures and common complications Whether you are an ophthalmologist, optometrist, resident, or student, if you are looking for a review of corneal conditions, Cornea Handbook will be a vital addition to your ophthalmic collection and the go-to resource for your everyday use.

Download or read book Atlas of Ocular Anatomy written by Mohammad Wakeel Ansari and published by Springer. This book was released on 2016-08-22 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a practical and concise atlas on ocular anatomy, with an emphasis on applied aspects and hints for easy retention strategies. The vast color illustrations and photographs consist of self-explanatory, precise, and meaningful representations of the points covered in the text. Covering chapters such as bony socket of the eye, extraocular muscles, eyelids, cornea and lens, and neurology of the eye, Atlas of Ocular Anatomy gives a summary of the important and relevant points for each topic, separating out the essential from the nonessential elements. Complete with representative schematic line diagrams and full color photographs, this atlas features the correlation between anatomic facts with their probable clinical presentations in disease.

Download or read book Cornea E Book written by Mark J Mannis and published by Elsevier Health Sciences. This book was released on 2021-03-05 with total page 2226 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only reference available that synthesizes this vast subspecialty into a single trustworthy resource, Cornea, 5th Edition, provides state-of-the-art coverage of the expanding range of contemporary corneal surgery, new diagnostic and imaging technologies, and medical management of corneal and external disease as well as ocular surface disease. Drs. Mark J. Mannis, Edward J. Holland, and a team of more than 200 global experts keep you up to date with both common and more obscure diseases and disorders and the best route to effective treatment and management, making this two-volume text a must-have resource for residents and fellows, general ophthalmologists, and seasoned cornea specialists. - Features more than 2,300 exceptionally clear illustrations, diagnostic images, and step-by-step surgical photographs that offer superb visual guidance. - Contains 14 new chapters, including Nanothin DSAEK, Aqueous Deficiency Dry Eye Syndrome, Evaluation of Recurrent Corneal Erosions, Evaluation of the Corneal Ulcer, Contemporary Approaches to the Biosynthetic Cornea, and Topography Guided Photorefractive Keratectomy, and more. - Includes more than 80 video clips of current corneal surgery techniques, including new clips of the application of cryopreserved amniotic membrane in the treatment of acute stevens , penetrating keratoplasty, DM rupture management in STALK and in the keratonconus patient, and KAMRA corneal inlay implantation. - Covers the latest developments in ocular surface transplantation, including new chapters on Conjunctival Limbal Autograft (CLAU); Living Related Conjunctival Limbal Allograft (Lr-CLAL); Keratolimbal Allograft; Cultivated Limbal Epithelial Transplantation; Simple Limbal Epithelial Transplantation; and Outcomes of Ocular Surface Transplantation. - Provides key point overviews in each chapter that offer easier access to crucial information.

Download or read book The Encyclopaedia Britannica written by and published by . This book was released on 1895 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Encyclopaedia Britannica written by Thomas Spencer Baynes and published by . This book was released on 1878 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A new theory of Optics as regards refraction of dense media and vision written by Alexander WATT (Apothecary, Jamaica.) and published by . This book was released on 1825 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Eye Pathology written by Steffen Heegaard and published by Springer. This book was released on 2014-11-10 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a comprehensive, in-depth, and up-to-date resource on eye pathology that will be of great practical value for ophthalmic and general pathologists and ophthalmologists. Congenital abnormalities, inflammatory conditions, infections, injuries, degenerative diseases, and tumors are all covered with the aid of more than 700 images. In the case of tumors, the wide variety of neoplasms that occur in the eyelid, conjunctiva, retina, uveal tract, lacrimal gland and sac, orbit, and optic nerve are comprehensively reviewed, and the most recent knowledge on the relation between genetics and prognosis is presented. Entries on specific diseases are organized in a standard way, with information on etiology, epidemiology, clinical presentation, pathological characteristics, differential diagnosis, therapy, and prognosis. The authors are all recognized experts and members of the European and American ophthalmic pathology societies.​

Download or read book Ophthalmology written by Myron Yanoff and published by Elsevier Health Sciences. This book was released on 2009-01-01 with total page 1551 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on feedback, the authors have streamlined their bestselling reference to zero in on just the clinical answers ophthalmologists need in day-to-day practice. This new edition presents unparalleled guidance on nearly every ophthalmic condition and procedure.

Download or read book Corneal Collagen Cross linking and Femtosecond Laser in Refractive and Cataract Surgery written by Hui Sun and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The cornea serves as the gateway into the eye for external images. Maintenance of corneal shapes and transparency is critical for refraction. Small changes in the smoothness of the corneal surface or in the total thickness of the cornea can lead to visual distortion. Recently, however, refractive surgery for the transparent cornea has been introduced. In this procedure, the curvature of the cornea is modified either by cutting the stroma or by laser ablation of normal corneal tissue. Given the clinical efficacy of refractive surgery, it is important to understand the anatomical and physiological structure of the cornea such as corneal collagen cross-linking. Multiple commercial femtosecond lasers have been cleared for use by the US Food and Drug Administration for ophthalmic surgery, including use in creating corneal flaps in LASIK surgery. The newest application of femtosecond lasers in ophthalmology is in cataract surgery. In LASIK surgery, all surgery procedures are done in cornea. In cataract surgery, the cornea is also cut with a femtosecond laser. Over the last decade, the field of femtosecond eye surgery has expanded rapidly, supporting the advantages of combined high-ablation precision and minimized collateral tissue effects. One of the most promising applications for femtosecond laser eye surgery has been corneal surgery, namely laser in situ keratomileusis (LASIK) surgery, where the high-pressure laser plasma non-thermally dissociates the dense corneal tissue, thereby enabling lamellar cornea procedures with minimized side effects with the subsequent excimer laser shaping the corneal surface. Millions of people worldwide have been patients for LASIK surgery and have benefited from new forms of technology. LASIK surgery includes three parts: wavefront detection, femtosecond laser flap creation, and excimer laser cornea correction. Some parts of this book focus on femtosecond laser-assisted LASIK surgery, including basic research for femtosecond laser eye surgery and tissue imaging. The newest application of femtosecond lasers in ophthalmology is cataract surgery. Currently, there are a few lasers at or near the point of commercial release, including LenSx (Alcon Laboratories Inc., Fort Worth, Texas), Catalys (Abbott Medical Optics, Santa Ana, California), LensAR (LensAR Inc., Orlando, Florida), Victus (Technolas Perfect Vision and Bausch & Lomb, Rochester, New York), and Femto LDV (Ziemer Ophthalmic Systems AG, Port, Switzerland). All laser systems share a common platformwhich includes an anterior-segment imaging system, patient interface, and femtosecond laser to imageto calculate and deliver the laser pulses. Some parts of this book explain the principle of OCT-guided femtosecond laser cataract surgery. The combination of femtosecond laser surgery and OCT imaging simultaneously guides the development of next generation femtosecond surgical lasers in cataract surgery and explores femtosecond laser surgical strategies.

Download or read book Cornea E Book written by Jay H. Krachmer and published by Elsevier Health Sciences. This book was released on 2010-10-27 with total page 1997 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cornea, edited by Drs. Krachmer, Mannis & Holland, is the only truly comprehensive clinical reference available that covers external disease, anterior uveitis, and the expanding range of contemporary corneal surgery. In this Third Edition, state-of-the-art coverage, 25 brand-new chapters, and 45 new videos provide expert guidance on performing femtosecond-assisted penetrating keratoplasty, DSAEK, deep anterior lamellar keratoplasty, and many other cutting-edge techniques. Plus, you’ll have easy access to the complete contents and illustrations online at expertconsult. Overcome any clinical challenge related to the cornea, external disease, anterior uveitis, and the expanding range of contemporary corneal surgery with the most complete, authoritative guidance source available. Get superb visual guidance with exceptionally clear illustrations, diagnostic images, and step-by-step surgical photographs. Access the complete contents and illustrations online at expertconsult. Make optimal use of Anterior Segment OCT to plan and choose treatment options and assess post-operative recovery. Master the latest surgical techniques—including femtosecond-assisted penetrating keratoplasty, DSAEK, and deep anterior lamellar keratoplasty—thanks to 25 brand-new chapters and 45 new videos on DVD (a total of 3 hours running time). Understand the full spectrum of corneal diseases with coverage of the new corneal dystrophy classification that incoporates current genetic, clinical, and pathologic information.