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Download or read book Archives of Ophthalmology, Vol. 26 (Classic Reprint) written by American Medical Association and published by Forgotten Books. This book was released on 2016-12-05 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Archives of Ophthalmology, Vol. 26 I lay no claim to any originality in the formulae here given. They follow immediately from the data which may be found in the standard books on physiological optics, such as those of Helmholtz, Donders, and of Landolt. The numerical values of the constants used in this paper are those given by Landolt. The frequency of error arising from an improper application of the rule about normal eyes to the length of aphakic eyes justifies, I trust, this brief reference to the essential difference between the two conditions. 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.