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Cell Phone Radiation May Cause Visual Damage IsraCast Technology News, July 29, 2005 by & 8230; they were the trigger for the first guidelines for exposure to electromagnetic radiation. At least one kind of damage seems to accumulate over time and not heal, challenging the common view and leading the researchers to the assertion that the duration of exposure is not less important than the intensity of the irradiation. The researchers also emphasized that existing exposure guidelines for microwave radiation might have to change . & 8230; and the left for Environmental Oncology Practical Advice to Limit Exposure to Electromagnetic Radiation Emitted from Cell Phones 1. Do not allow children to use a cell phone, except & 8230;

, they were the trigger for the first guidelines for exposure to electromagnetic radiation. Moreover, the eye as our natural radiation detector is the obvious choice for investigating the effects of electromagnetic radiation upon the human body. In more recent studies on animals the effects of microwave radiation as a risk factor for cataracts have been established and have helped determine the guidelines put forth by the International Commission on Non-Ionizing Radiation Protection (ICNIRP) in 1998. A common measure for microwave radiation is the Specific Absorption Rate (SAR) which is the average power density absorbed in a given volume per average weight density (Watt/Kg). This is the standard used by cell phone companies, among others, to measure levels of radiation. When microwave energy impinges upon body tissue, part of it is absorbed and converted to heat due to ionic conduction. This heat manifests itself as a temperature increase inside the tissue. Past studies in animals have shown that even a slight increase in temperature close to the lens (as low as 3 degrees Celsius) can increase the risk of developing a cataract. With a low enough SAR the local temperature in the lens might never increase to that level. A less common measure is called Specific Energy Absorption (SA) , and is defined as the energy density absorbed in the tissue divided by its weight density. While SAR is the measure of the rate microwave radiation is absorbed by a tissue, SA is the measure of the total energy absorbed. This difference played a significant role in a recently published study on the effects of microwave radiation on the visual system. Microscope photographs of lenses incubated in organ culture conditions for 12 days. left frame shows Control lens with no damage. Bottom frame demonstrates the effect of microwave radiation on bovine lens sutures for a total exposure of 192 cycles (1.1GHz, 2.22mW).Each cycle lasts 50min followed by 10 min pause. In the absence of microwave radiation, the bubbles are generated by temperature increase to 39.5 8C during 4 h; see left frame. In the study conducted by researchers in the Rappaport Faculty of Medicine at the Technion, and published in the journal Bioelectromagnetics, a new link has been found between microwave radiation and the development of cataracts . Eye lenses of one-year-old male calves obtained from a slaughterhouse were exposed to microwave radiation - one eye from each pair used for& 8230;..

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