Inhaltsangabe
Excerpt from Determination of the Refraction of the Eye by Means of the Ophthalmoscope
IF the ophthalmoscope was one of the most brilliant inventions ever known to medical science, it was certainly, also, one of the most complete, for the very method first proposed by Helmholtz still remains by far the most beautiful, comprehensive, and truth ful of all the means yet_im our possession for the exploration of the bottom of the eye.
As a knowledge of this method - that by the upright image is absolutely necessary for the determination of the Optical condi tion of the eye, a few words as to the manner in which it should be performed in general, may be of service to the reader before proceeding to the more difficult task of determining in a given case the nature and exact degree of refraction.
The position of the patient and examiner is not without im portance. The observer should sit well to the side of the patient, and on the side, of course, of the eye to be examined. If the right eye is to be examined, the patient should be directed to look slightly towards the right if the left eye, then towards the left.
In fact, the directions are exactly opposite to those given for the inverted image, and just the contrary from what are usually laid down in the books.
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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.
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Excerpt from Determination of the Refraction of the Eye by Means of the Ophthalmoscope
IF the ophthalmoscope was one of the most brilliant inventions ever known to medical science, it was certainly, also, one of the most complete, for the very method first proposed by Helmholtz still remains by far the most beautiful, comprehensive, and truth ful of all the means yet_im our possession for the exploration of the bottom of the eye.
As a knowledge of this method - that by the upright image is absolutely necessary for the determination of the Optical condi tion of the eye, a few words as to the manner in which it should be performed in general, may be of service to the reader before proceeding to the more difficult task of determining in a given case the nature and exact degree of refraction.
The position of the patient and examiner is not without im portance. The observer should sit well to the side of the patient, and on the side, of course, of the eye to be examined. If the right eye is to be examined, the patient should be directed to look slightly towards the right if the left eye, then towards the left.
In fact, the directions are exactly opposite to those given for the inverted image, and just the contrary from what are usually laid down in the books.
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.
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