Effects of Radiation on the Mammalian Eye

Effects of Radiation on the Mammalian Eye PDF Author: Hillel Don Lazarus
Publisher:
ISBN:
Category : Eye
Languages : en
Pages : 32

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Effects of Radiation on the Mammalian Eye

Effects of Radiation on the Mammalian Eye PDF Author: Hillel Don Lazarus
Publisher:
ISBN:
Category : Eye
Languages : en
Pages : 32

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Book Description


Effects of Radiation on the Mammalian Eye

Effects of Radiation on the Mammalian Eye PDF Author: Hillel Don Lazarus
Publisher:
ISBN:
Category : Eye
Languages : en
Pages : 520

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Radiotherapy of Intraocular and Orbital Tumors

Radiotherapy of Intraocular and Orbital Tumors PDF Author: Winfried E. Alberti
Publisher: Springer Science & Business Media
ISBN: 3642970117
Category : Medical
Languages : en
Pages : 417

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Book Description
Radiotherapy of Intraocular and Orbital Tumors presents a new approach to the role of radiation therapy in the management of ophthalmic cancer. The indications for ultrasonography, computed tomography, and magnetic resonance imaging studies are analyzed, and treatment techniques, together with their results, are described for each tumor. Particle beam and plaque irradiation are reviewed, and conservative and surgical management of radiation effects are detailed. In the past, most books on this subject included a chapter on radiotherapy but emphasized the dangers of radiation complications. However, great progress in understanding the effects of irradiation upon the tissues of the eye and orbit, new therapeutic equipment, and new imaging techniques (CT, MRI) allow for careful treatment planning. This book has taken the long overdue step of reconsidering the role of irradiation of the eye so that it may take its place as a respected, rather than feared, treatment in the combined modality approach so important today. Together with experts in relevant fields, the editors have produced a refreshingly clear and thoroughly referenced volume which will be a valuable asset to all ophthalmologists, radiation oncologists, pediatricians, endocrinologists, oncologists, and residents in training, as well as to students in these disciplines.

Biological and Medical Aspects of Ionizing Radiation

Biological and Medical Aspects of Ionizing Radiation PDF Author: Paul A. Cibis
Publisher:
ISBN:
Category : Histology
Languages : en
Pages : 19

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Book Description
The effect of massive doses of x-radiation upon the eye was studied in experiments on 9 albinotic and 6 pigmented guinea pigs, 60 New Zealand and 60 chinchilla grey rabbits, 2 rhesus monkeys, and 2 dogs. The clinical and histological changes in the retina were observed. The most significant post-radiation effect was the immediate and irreversible impairment of the rod cells manifested by typical changes in the ERG, night blindness, constriction of the visual field, and pyknosis of the rod nuclei followed by degeneration of the outer retinal layers.

Ultraviolet Radiation Effects on the Human Eye

Ultraviolet Radiation Effects on the Human Eye PDF Author:
Publisher:
ISBN:
Category : Eye
Languages : en
Pages : 30

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Health Effects of Exposure to Low Levels of Ionizing Radiation

Health Effects of Exposure to Low Levels of Ionizing Radiation PDF Author: National Research Council
Publisher: National Academies
ISBN: 0309039959
Category : Science
Languages : en
Pages : 436

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Book Description
This book reevaluates the health risks of ionizing radiation in light of data that have become available since the 1980 report on this subject was published. The data include new, much more reliable dose estimates for the A-bomb survivors, the results of an additional 14 years of follow-up of the survivors for cancer mortality, recent results of follow-up studies of persons irradiated for medical purposes, and results of relevant experiments with laboratory animals and cultured cells. It analyzes the data in terms of risk estimates for specific organs in relation to dose and time after exposure, and compares radiation effects between Japanese and Western populations.

Radio Frequency Radiation Dosimetry and Its Relationship to the Biological Effects of Electromagnetic Fields

Radio Frequency Radiation Dosimetry and Its Relationship to the Biological Effects of Electromagnetic Fields PDF Author: B. Jon Klauenberg
Publisher: Springer Science & Business Media
ISBN: 9401141916
Category : Science
Languages : en
Pages : 577

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Book Description
The North Atlantic Treaty Organization (NATO) has sponsored research supporting development of personnel safety standards for exposure to Radio Frequency Radiation (RFR) for over a quarter century. NATO previously recognized that one of the most important tools used in the RFR effects research laboratory is accurate dosimetry when it supported a NATO Advanced Studies Institute (ASI) on Advances in Biological Effects and Dosimetry of Low Energy Electromagnetic Fields held in 1981, in Erice, Sicily. That meeting resulted in a NATO ASI publication; Biological Effects and Dosimetry of l Non-ionizing Radiation: Radiofrequency and Microwave Energies . The most recent NATO sponsored program on RFR was an Advanced Research Workshop (ARW) on "Developing a New Standardization Agreement (STANAG) for Radio frequency Radiation" held May 1993, at the Pratica di Mare Italian Air Force Base, Pomezia (Rome) Italy. That ARW produced an ASI proceedings, published in 1995: Radio frequency Radiation Standards, Biological Effects, Dosimetry, Epidemiology, and Public Health Policy2. The Rome ARW and the Proceedings served as a springboard to the much needed revision of the NATO Standardization Agreement (STANAG) 2345 MED "Evaluation and Control of Personnel Exposure to Radio Frequency Fields - 3 kHz to 300 GHz,,3, which was subsequently promulgated in October 1998. One of the published recommendations developed by the Rome ARW was to hold this second ARW focusing on dosimetry and measurements.

Radiant Energy and the Eye

Radiant Energy and the Eye PDF Author: Sidney Lerman
Publisher: MacMillan
ISBN:
Category : Medical
Languages : en
Pages : 350

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Transmission of the Ocular Media

Transmission of the Ocular Media PDF Author: Edward A. Boettner
Publisher:
ISBN:
Category : Infrared radiation
Languages : en
Pages : 60

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Book Description
The spectral transmittance of ultraviolet, visible, and near infrared light through the ocular media of humans has been measured. Using freshly enucleated eyes, the transmittances of each component part (cornea, aqueous humor, lens, vitreous humor) were determined for the wavelength range from 0.22 to 2.8 microns. To date 9 eyes have been measured, ranging in age from 4 weeks to 75 years. Two types of measurements were made: the first to measure the total light transmitted (direct and scattered) at each wavelength and the second to measure the percent transmittance of that light passing directly through the various media without absorption or scattering. The results show that: (a) the transmission of ultraviolet radiation decreases with the age of the eye; (b) the transmission of infrared radiation appears to be independent of the age; and (c) the maximum total transmittance of the whole eye, about 81 percent, is obtained in the region from 600 to 850 millimicrons.

Webvision

Webvision PDF Author: Helga Kolb
Publisher:
ISBN:
Category :
Languages : en
Pages :

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