Technic of Refraction, Trial Case and Refractive Instruments

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Excerpt from Technic of Refraction, Trial Case and Refractive Instruments: A Manual of Practical Refraction With Instructions for the Operation of the Trial Case and Refractive Instruments and Methods for Successfully Carrying Out a Case of Ocular Refraction The instructions given ih this little book are those which the design Of the various instruments and the concensus Of the best experience have shown to be the most effective way Of getting all that is to be got out of the procedure in question. Each technique is set out, in tabulated, consecu tive form, step by step, so that the student or practitioner may, by its aid, perform the operation from start to finish without any uncertainty or hesitation. The book is, in short, a working manual Of practical refraction. If the reader has never yet performed the task Of refracting, he may here learn, at first hand, precisely how to proceed. If he has been using the methods and instruments here described by different teclmics, he will find his work greatly simplified and its efficiency increased by following the procedures laid down in these pages. 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.