Defects of Vision and Hearing in the Public Schools
Defects of Vision and Hearing in the Public Schools

Author: Joseph Whitefield Smith

Publisher: Palala Press

Published: 2016-05-16

Total Pages: 106

ISBN-13: 9781356612529

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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.

Defects of Vision and Hearing in the Public Schools
Defects of Vision and Hearing in the Public Schools

Author: J. Whitefield Smith

Publisher:

Published: 2016-06-19

Total Pages: 108

ISBN-13: 9781332723584

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Excerpt from Defects of Vision and Hearing in the Public Schools: A Hand Book for the Use of Teachers In the preparation of these pages effort has been made to avoid technicalities, and where scientific terms have been used they have in the same connection been explained. 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.

Methods of Testing School Children for Defects of Vision and Hearing (Classic Reprint)
Methods of Testing School Children for Defects of Vision and Hearing (Classic Reprint)

Author: Harvey a Peterson

Publisher: Forgotten Books

Published: 2017-10-31

Total Pages: 22

ISBN-13: 9780260025890

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Excerpt from Methods of Testing School Children for Defects of Vision and Hearing Seat the child twenty feet from the charts and cover his right eye with a bandage. If he wears glasses test him with them on, tying a cardboard blindfover the right eye and slipping it down inside the glasses, taking care that it does not interfere with winking. Tell him to read the letter chart from left to right, beginning with the line numbered 8. If he can read all of this correctly, record the vision of the left eye as normal. If he misses a letter he should pro cede to the next coarser line, and so on, until he can read a line without any errors. The fraction opposit this line on the left side of the chart indicates his fraction of normal vision, 8-10, 6-10, etc., and'should be recorded. Now test the same eye for astigmatism. Ask the child to look at the astigmatism chart, and tell whether some of the radiating lines appear clearer and blacker than the rest. If so, astigmatism is present, and the diameter of greatest clearness indicates the type of astigmatism. Vertical as tigmatism is the most common type. Record the diameter of greatest clearness, using the numbers around the rim of the chart. If all the lines are blurd, have him approach the chart and record the diameter that first becomes clear. 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.