This pioneering work on the use of radiant energy in ophthalmology is a must-read for anyone interested in the history of medical science. The author, a noted ophthalmologist and scientist, provides a detailed account of his experiments and research on the effects of radiant energy on the human eye. He also explores the potential applications of this technology for the treatment of various eye disorders. With clear language and detailed illustrations, this book is an accessible introduction to an important area of medical research. 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 Radiant Energy and the Ophthalmic Lens 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.

Transmission of radiant energy by ophthalmic glasses : Being an Essay Contributed to the American Encyclopedia of Ophthalmology (1921)

Since the publication of the first edition of Radiotherapy of Intraocular and Orbital Tumors in 1993 the treatment programs for cure have changed from the dominance of surgical resection to the utilization of radiation therapy with preservation of the eye intact and preservation of vision. In 2002 about 2,300 primary eye tumors will be diagnosed in the United states, 75% of which will be choroidal melanomas, 20% retinoblastomas, and the remainder a wide variety of tumors - malignant lymphoma, rhabdomyosarcomas, liposarcomas, meningiomas, malignant fibrous histiocytomas, etc. Even so, the majority of malignant tumors of the eye are metastatic, primarily from cancers of the lung or breast. The impact of newer imaging studies, including computed tomography, magnetic resonance imaging, and ultrasound with and without contrast medium, have allowed for better tumor definition, more precise treatment techniques, and major improvement in local control, with preservation of the eye intact and excellent survival. The better histologic definition of the tumor has selected more appropriately the cases suitable for adjuvant chemotherapy particularly demonstrated by the combined integrated multimodal treatment of rhabdomyosarcoma without enucleation. Surgical techniques are now being reserved for biopsy and for treatment failures, a dramatic change in treatment approaches since 1993. The second edition by Sagerman and Alberti clearly demonstrates this major change in treatment. The volume explores the impact of diagnostic workup, the role of surgery, the role of external beam radiation therapy, the use of radioactive plaques, photocoagulation, cryotherapy, and other less major surgical procedures.