Intended AudienceTrade
SynopsisExcerpt from Optometrist's Manual, Vol. 2: A Treatise on the Science and Practice of Optometry The popularity of these two volumes as text and refer ence books is explained by their remarkable lucidity of state ment and the omission of confusing technicalities, which makes them especially valuable to students. The author's quarter of a century experience as a teacher of practical optometry in conjunction with his profound knowl edge of the subject, qualify him in a special manner to com pile a work of this character, the value of which is best shown in its universal popularity. 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., Excerpt from Optometrist's Manual, Vol. 2: A Treatise on the Science and Practice of Optometry Hermann Von Helmholtz shares with Donders the glory of laying the foundation on which the modern science of ophthalmology is built. This eminent investigator is the bright, particular luminary in the field of physiologic optics. He was born in 1821, and took his degree of doctor of medicine at Berlin in 1842. He served as a military surgeon until 1847, during which time he published his important article on the conservation of energy. In 1850 he went to the University of Koenigsberg as professor of physiology and general pathology, and here it was where, in 1851, he announced his invention of the ophthalmoscope, which revolutionized ophthalmology. He was called to Heidelberg in 1858, and he here devoted a great deal of study to physiological optics, as a result of which his celebrated "Handbook of Physiological Optics" appeared during the ten years from 1856 to 1866, a book noted for its depth of original investigation, historical research and profound erudition. A second edition of it appeared during the decade of 1885 to 1896. This work, which is too mathematical and profound for the average student, is published in German and French only, but the portions of it of practical interest to the refractionist will be found incorporated in simplified form in Tscherning's "Physiologic Optics," translated into English by Carl Weiland M. D., and published by The Keystone Publishing Co. Helmholtz was called to Berlin in 1871 as professor of physics and director of the physical laboratory at the University of Berlin, and remained there until 1887, when he became director of the great Physico-technical Institute at Charlottenburg. He died in 1894. 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.