- are pda screens bad for eyesight?
- Posted by badcloud on July 5th, 2003
that's basically it. are they? I have a treo 90, and I'm not sure what
the hertz value is on it, since I understand that anything under 75hz
is bad for the ol' peepers. I just can't allow myself to keep reading
endless ebooks without knowing that it's ok on my eyes.
any feedback will be much appreciated
-Raanan
- Posted by Dudley on July 5th, 2003
Well, they seem to still be using them on Star Trek, Next Generation, so I
guess they must've decided they were safe along time ago, sometime in the
future!!!
- Posted by badcloud on July 6th, 2003
Gawnsoft <xlucid@users.sourceforge.net> wrote in message news:<v1tegvomlrqa2b5vkh0bi26rc8p8fknblu@4ax.com>. ..
thanks for the informative info. b&w, you say... I've been looking for
a way to change the color content (and lack of content) on the color
Palm OS to save battery life, but there just doens't seem to be any
user-friendly way of doing it. know of any hackmaster hack or the
like?
-Raanan
- Posted by r_z_aret@pen_fact.com on July 7th, 2003
Good question for an eye doctor. I'm not one, but I'll answer anyway.
I'm pretty sure that such eye strain has no permanent effect. You
might be concerned about being unable to read as much as you want, or
maybe misreading, or because you might have trouble with some activity
(such as driving) for a bit after straining your eyes. I suppose
chronic strain (especially if it leaves your eyes blood shot) might
leave your eyes open to an infection.
I think staring without blinking is more likely to be a problem. This
is a common problem for folks who work with computers. Maybe less of a
problem for folks reading ebooks.
I _think_ focusing the same distance for long periods (as at a
monitor, which doesn't move), might let the focusing muscles atrophe a
bit, and thus increase the need for glasses,
On 4 Jul 2003 17:45:23 -0700, badcloud@mailandnews.com (badcloud)
wrote:
-----------------------------------------
To reply to me, remove the underscores (_) from my email address (and please indicate which newsgroup and message).
Robert E. Zaret
PenFact, Inc.
46 Beach Street
Boston, MA 02111
www.penfact.com
- Posted by Gawnsoft on July 7th, 2003
On Mon, 07 Jul 2003 19:33:33 GMT, r_z_aret@pen_fact.com wrote (more or
less):
Err, the problem with CRT monitors is that the image /is/ moving.
(It's moving at the number of vertical lines on the display X width of
the display X refresh rate )
B&W LCDs don't have a moving image.
Many (most?) colour LCDs don't have a moving image.
Cheers,
Euan
Gawnsoft: http://www.gawnsoft.co.sr
Symbian/Epoc wiki: http://html.dnsalias.net:1122
Smalltalk links (harvested from comp.lang.smalltalk) http://html.dnsalias.net/gawnsoft/smalltalk
