Written by an expert in ophthalmology, this book explores the topics of eye refraction, accommodation, and anomalies in detail. Readers will benefit from the author's vast knowledge and experience, gaining valuable insights into this important aspect of eye health and vision. 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 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. 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.

Excerpt from The Refraction and Accommodation of the Eye and Their Anomalies It cannot be denied that the practice of the present day leaves much to be desired in this respect. This is no doubt due to the defective Physical and Mathematical education which is frequently received by the Practitioner, and explains why he instinctively avoids the study of anything bearing a resemblance to Algebra, and looks upon it as something very difficult to be mastered, - something quite without the confines of his sphere. With regard to the study of the Refraction of the Eye, the amount of Mathematical knowledge which is essential in practice is, however, very easily acquired. Indeed, even in following the course of the rays of light through the entire dioptric system of the eye, as far as the retina - a calculation which, towards the end, becomes somewhat complicated - the Author has not found it meces sary to go beyond the elementary knowledge of Mathematics which he acquired at college, when studying the obligatory Greek and Latin. 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.

Recent vision research has led to the emergence of new techniques that offer exciting potential for a more complete assessment of vision in clinical, industrial, and military settings. Emergent Techniques for Assessment of Visual Performance examines four areas of vision testing that offer potential for improved assessment of visual capability including: contrast sensitivity function, dark-focus of accommodation, dynamic visual acuity and dynamic depth tracking, and ambient and focal vision. In contrast to studies of accepted practices, this report focuses on emerging techniques that could help determine whether people have the vision necessary to do their jobs. In addition to examining some of these emerging techniques, the report identifies their usefulness in predicting performance on other visual and visual-motor tasks, and makes recommendations for future research. Emergent Techniques for Assessment of Visual Performance provides summary recommendations for research that will have significant value and policy implications for the next 5 to 10 years. The content and conclusions of this report can serve as a useful resource for those responsible for screening industrial and military visual function.