Download or read book Determination of the Refraction of the Eye by Means of the Ophthalmoscope written by Edward Greely Loring and published by . This book was released on 1876 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determination of the Refraction of the Eye by Means of the Ophthalmoscope Classic Reprint written by Edward G. Loring and published by Forgotten Books. This book was released on 2018-01-05 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Determination of the refraction of the eye by means of theophthalmoscope written by Edward Greely Loring and published by . This book was released on 1876 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determination of the Refraction of the Eye by Means of the Ophthalmoscope written by Edward Greely Loring and published by Palala Press. This book was released on 2016-05-16 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Determination of the Refraction of the Eye by Means of the Ophthalmoscope written by Edward G. Loring and published by Trieste Publishing. This book was released on 2017-08-23 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book The normal eye determination of refraction diseases of the media physiological optics and theory of the ophthalmoscope written by Edward Greely Loring and published by . This book was released on 1893 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Retinoscopy or Shadow Test in the Determination of Refraction at One Meter Distance written by James Thorington and published by . This book was released on 1912 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Retinoscopy or Shadow Test in the Determination of Refraction at One Meter of Distance with the Plane Mirror written by James Thorington and published by . This book was released on 1898 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Retinoscopy or Shadow Test in the Determination of Refractions at One Meter Distance with the Plane Mirror written by James Thorington and published by . This book was released on 1906 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Theory and Practice of the Ophthalmoscope written by John Herbert Claiborne (Jr.) and published by . This book was released on 1888 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ophthalmoscopy Retinoscopy and Refraction written by William Albert Fisher and published by . This book was released on 1927 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Text book of Ophthalmoscopy The normal eye determination of refraction diseases of the media physiological optics and theory of the ophthalmoscope written by Edward Greely Loring and published by . This book was released on 1885 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ocular Refraction and the Shadow Test written by Frederick A. Bates and published by . This book was released on 1903 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lectures on the Errors of Refraction and Their Correction with Glasses written by Francis Valk and published by . This book was released on 1904 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ophthalmoscope written by Charles Harrison Vilas and published by Theclassics.Us. This book was released on 2013-09 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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..
Download or read book Text book of ophthalmology written by Ernst Fuchs and published by . This book was released on 1908 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lectures on the Errors of Refraction and Their Correction with Glasses written by Francis Valk and published by . This book was released on 1893 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
