Article View: comp.cog-eng
Article #47Re: Radiation from computer screen, eye strain
From: Mitchell Wyle
Date: Mon, 03 Jul 1989 07:41
Date: Mon, 03 Jul 1989 07:41
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In article <783@lakesys.UUCP> davef@lakesys.UUCP (Dave Fenske) writes: >I don't believe there is any radiation (as in X-rays) to worry about. There >are many other factors that have not been proven to either have or not have >effect on human beings. There is some speculation that Radon might be attracted to a VDU screen (or TV) because of the magnetic field. If you work in a well-isolated stone building with closed windows, you might want to measure the radon in the room and how much congregates around the screen. I've seen no EPA data about radon and VDUs. VDUs do not emit any harmful radiation. I've seen lots of studies, controls, regulations, etc. in "Health Physics Journal." Some people complain of eye strain and astigmatism after n years of VDU exposure (8 hours a day). A simple "exercise" prescribed by a physical therapist / karate master is: Three times a day, spend 2-3 minutes focusing first on something very close (your hand) and then something very far (out the window). Wait til your eyes focus, then dart to the other object. He claimed that flexing the lenses in your eyes would postpone lens hardening in later life (and the need for bi-focals). -- -Mitchell F. Wyle Institut fuer Informationssysteme wyle@inf.ethz.ch ETH Zentrum / 8092 Zurich, Switzerland +41 1 256 5237
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arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!cs.utexas.edu!uunet!mcvax!cernvax!ethz!ethz-inf!wyleReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!cs.utexas.edu!uunet!mcvax!cernvax!ethz!ethz-inf!wyle From: wyle@inf.ethz.ch (Mitchell Wyle) Newsgroups: comp.cog-eng Subject: Re: Radiation from computer screen, eye strain Keywords: radiation Message-ID: <287@ethz-inf.UUCP> Date: 3 Jul 89 07:41:34 GMT References: <29846@ucbvax.BERKELEY.EDU> <783@lakesys.UUCP> Reply-To: wyle@ethz.UUCP (Mitchell Wyle) Organization: Departement fuer Informatik, ETH Zuerich Lines: 27