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Article #125

pointer: health hazards from VDTs/CRTs

#125
From: David Vinayak Wallace
Date: Fri, 14 Mar 1986 15:21
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    Date: Mon, 3 Mar 86 18:04:18 pst
    From: <sdcsvax!celerity!telesoft!pilotti at ucbvax.berkeley.edu>

    Any comments on "normal" vs. reverse video?  I use "reverse"
    (dark on light) and constantly get ribbed by my coworkers who
    mostly use light-on-dark (the status-quo "normal").

I got the same reaction at Xerox (only in reverse) as I use
white-on-black.  My rationale (apart that after years of it I find it
hard to change) is that the less light my eyes have to deal with the
better.  And nothing is worse than attempting to read an out-of-focus
or saturated black-on-white screen!

For clarity, what I do is:
o close the blinds
o use as dim a screen as is clearly visible, with as high contrast as
  possible
o use incandescent lights.  Fluorescents are usually too bright.

These changes easily give me two or three hours more with the console
before it becomes impossible to focus.

    I sometimes feel I can read reverse better at a distance, and
    that it is more "natural" (ala dark letters on light paper),
    though I rarely can be convincing to a "non-believer"!

    I can simpathise!  But black-on-white, being actively bright, doesn't
remind me of a sheet of paper which is passive.  Mais chacun a son gout!

david
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From: GUMBY@MC.LCS.MIT.EDU (David Vinayak Wallace)
Newsgroups: mod.computers.workstations
Subject: pointer: health hazards from VDTs/CRTs
Message-ID: <[MC.LCS.MIT.EDU].850641.860314.GUMBY>
Date: Fri, 14-Mar-86 10:21:37 EST
Article-I.D.: <[MC.LCS.MIT.EDU].850641.860314.GUMBY>
Posted: Fri Mar 14 10:21:37 1986
Date-Received: Sun, 23-Mar-86 23:43:05 EST
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