Determination Of The Refraction Of The Eye By Means Of Theophthalmoscope
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Determination Of The Refraction Of The Eye By Means Of Theophthalmoscope
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Author : Edward Greely Loring
language : en
Publisher:
Release Date : 1876
Determination Of The Refraction Of The Eye By Means Of Theophthalmoscope written by Edward Greely Loring and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1876 with categories.
Determination Of The Refraction Of The Eye By Means Of The Ophthalmoscope
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Author : Edward Greely Loring
language : en
Publisher:
Release Date : 1876
Determination Of The Refraction Of The Eye By Means Of The Ophthalmoscope written by Edward Greely Loring and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1876 with Eye categories.
Determination Of The Refraction Of The Eye By Means Of The Ophthalmoscope Classic Reprint
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Author : Edward G. Loring
language : en
Publisher: Forgotten Books
Release Date : 2018-01-05
Determination Of The Refraction Of The Eye By Means Of The Ophthalmoscope Classic Reprint written by Edward G. Loring and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-01-05 with categories.
Excerpt from Determination of the Refraction of the Eye by Means of the Ophthalmoscope IF the ophthalmoscope was one of the most brilliant inventions ever known to medical science, it was certainly, also, one of the most complete, for the very method first proposed by Helmholtz still remains by far the most beautiful, comprehensive, and truth ful of all the means yet_im our possession for the exploration of the bottom of the eye. As a knowledge of this method - that by the upright image is absolutely necessary for the determination of the Optical condi tion of the eye, a few words as to the manner in which it should be performed in general, may be of service to the reader before proceeding to the more difficult task of determining in a given case the nature and exact degree of refraction. The position of the patient and examiner is not without im portance. The observer should sit well to the side of the patient, and on the side, of course, of the eye to be examined. If the right eye is to be examined, the patient should be directed to look slightly towards the right if the left eye, then towards the left. In fact, the directions are exactly opposite to those given for the inverted image, and just the contrary from what are usually laid down in the books. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Determination Of The Refraction Of The Eye By Means Of The Ophthalmoscope
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Author : Edward Greely Loring
language : en
Publisher: Palala Press
Release Date : 2016-05-16
Determination Of The Refraction Of The Eye By Means Of The Ophthalmoscope written by Edward Greely Loring and has been published by Palala Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-05-16 with categories.
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Determination Of The Refraction Of The Eye By Means Of The Ophthalmoscope
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Author : Edward G. Loring
language : en
Publisher: Trieste Publishing
Release Date : 2017-08-23
Determination Of The Refraction Of The Eye By Means Of The Ophthalmoscope written by Edward G. Loring and has been published by Trieste Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-23 with categories.
Trieste Publishing has a massive catalogue of classic book titles. Our aim is to provide readers with the highest quality reproductions of fiction and non-fiction literature that has stood the test of time. The many thousands of books in our collection have been sourced from libraries and private collections around the world.The titles that Trieste Publishing has chosen to be part of the collection have been scanned to simulate the original. Our readers see the books the same way that their first readers did decades or a hundred or more years ago. Books from that period are often spoiled by imperfections that did not exist in the original. Imperfections could be in the form of blurred text, photographs, or missing pages. It is highly unlikely that this would occur with one of our books. Our extensive quality control ensures that the readers of Trieste Publishing's books will be delighted with their purchase. Our staff has thoroughly reviewed every page of all the books in the collection, repairing, or if necessary, rejecting titles that are not of the highest quality. This process ensures that the reader of one of Trieste Publishing's titles receives a volume that faithfully reproduces the original, and to the maximum degree possible, gives them the experience of owning the original work.We pride ourselves on not only creating a pathway to an extensive reservoir of books of the finest quality, but also providing value to every one of our readers. Generally, Trieste books are purchased singly - on demand, however they may also be purchased in bulk. Readers interested in bulk purchases are invited to contact us directly to enquire about our tailored bulk rates.
The Normal Eye Determination Of Refraction Diseases Of The Media Physiological Optics And Theory Of The Ophthalmoscope
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Author : Edward Greely Loring
language : en
Publisher:
Release Date : 1893
The Normal Eye Determination Of Refraction Diseases Of The Media Physiological Optics And Theory Of The Ophthalmoscope written by Edward Greely Loring and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1893 with Eye categories.
The Ophthalmoscope
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Author : Charles Harrison Vilas
language : en
Publisher: Theclassics.Us
Release Date : 2013-09
The Ophthalmoscope written by Charles Harrison Vilas and has been published by Theclassics.Us this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-09 with categories.
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1882 edition. Excerpt: ... chapter X. refractive disorders. There are several ways of determining the refraction of an eye. It may be found by means of the incident light; by means of the lens necessary to use in order to see the upright image; by means of the enlargement of this image; by the distance at which the inverted image is formed; and by the enlargement of this image. The way most used, however, because the simplest and easiest, is that of finding the lens required by the examiner, (any ametropia of his being first corrected, and the accommodation of both examiner and patient being fully relaxed, ) to clearly and distinctly see the fund us of the eye under examination. Myopia.--It will be remembered that in myopia, the rays converge to a focus before reaching the retina. In other words the principal focus of the dioptric media lies in front of the retina. Hence rays issuing from the retina of a myopic eye do not emerge from the cornea parallel, as is the case in emmetropia; but coming from a point beyond the principal focus, they emerge as convergent rays. They cannot as convergent rays be brought to a focus upon the observer's retina, but after they cross each other and become divergent, the observer can obtain a distinct image. The image is an inverted one, as is proven by the fact that it moves in the opposite direction from the observer's head. The head of the observer must be from twelve to sixteen inches from the eye under examination. An erect image may be seen at a short distance by interposing a concave lens behind the mirror; but the lens should be of sufficient power to render the convergent rays parallel. The focal length of this lens will approximately represent the degree of the myopia existing in the eye under observation, and therefore the..
Text Book Of Ophthalmoscopy Vol 1
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Author : Edward G. Loring
language : en
Publisher:
Release Date : 2015-07-22
Text Book Of Ophthalmoscopy Vol 1 written by Edward G. Loring and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-07-22 with Science categories.
Excerpt from d104-Book of Ophthalmoscopy, Vol. 1: The Normal Eye, Determination of Refraction, Diseases of the Media, Physiological Optics, and Theory of the Ophthalmoscope Remarks on the ophthalmoscope; Examination by daylight; Examination of the eye by artificial light Examination with ophthalmoscope; Method of examination; Examination by the inverted image; Examination by the upright image The anatomy of the fundus of the normal eye The fundus of the normal eye as seen with the ophthalmoscope; Anomalies Determination of the optical condition of the eye with the ophthalmoscope; Refraction; Astigmatism; Refraction according to the standard of the inch; Directions in case the observer is ametropic; Determination of the refraction of an eye by the mirror alone, and by means of the inverted image; Astigmatism with the mirror alone; Astigmatism with the inverted image; Amount of enlargement produced by upright image About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Ophthalmoscopy Retinoscopy And Refraction
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Author : W. A. Fisher
language : en
Publisher:
Release Date : 2013-10
Ophthalmoscopy Retinoscopy And Refraction written by W. A. Fisher and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10 with categories.
Ophthalmoscopy, Retinoscopy and Refraction By WA Fisher Contents I--Ophthalmoscopy II--Diseases of the Retina III--Diseases of the Choroid Iv--Diseases of the Optic Nerve V--Field of Vision: Indirect and Direct Ophthalmoscopy VI--Systemic Examination of Eye VII--Glaucoma VIII--Optical Principles; Test Type; Lenses; Refraction; Cycloplegics IX--Applied Refraction; Astigmatism;Presbyopia X--Heterophoria--Muscular Insufficiency XI--Retinoscopy XII--Measurement of Lenses; Prescription writing; Transposition; Frame Fitting Introduction Ophthalmoscopy is generally considered as a difficult subject. It is one that is not taught either practically or successfully in medical colleges, with the result that scarcely two per cent of practitioners coming to the author for postgraduate teaching know how to use the ophthalmoscope. In the author's opinion, ophthalmoscopy and the fitting of glasses belong to the general practitioner, and acquirement of the necessary practical and theoretical knowledge is easy, interesting and within the reach of all. This book has been written with the intention of teaching medical practitioners and students the practical use of the ophthalmoscope and retinoscope, with easy application of methods of study, to the detection of detection of diseases of the interior of the eye, and for the fitting of glasses when they are indicated. By mastering the methods here described and equipping himself with the necessary instruments, there is no reason why the general practitioner should not prescribe so as to correct the common errors of refraction and become proficient in the use of the ophthalmoscope. ------------------------------------------------------------------------------------------------------------------------------------------ Windham Press is committed to bringing the lost cultural heritage of ages past into the 21st century through high-quality reproductions of original, classic printed works at affordable prices. This book has been carefully crafted to utilize the original images of antique books rather than error-prone OCR text. This also preserves the work of the original typesetters of these classics, unknown craftsmen who laid out the text, often by hand, of each and every page you will read. Their subtle art involving judgment and interaction with the text is in many ways superior and more human than the mechanical methods utilized today, and gave each book a unique, hand-crafted feel in its text that connected the reader organically to the art of bindery and book-making. We think these benefits are worth the occasional imperfection resulting from the age of these books at the time of scanning, and their vintage feel provides a connection to the past that goes beyond the mere words of the text.
The Estimation Of The State Of The Refraction By The Ophthalmoscope
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Author : J. F. Streatfeild
language : en
Publisher:
Release Date : 1873
The Estimation Of The State Of The Refraction By The Ophthalmoscope written by J. F. Streatfeild and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1873 with Ophthalmology categories.