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Computer Vision Syndrome (CVS)

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  Computer Vision Syndrome (CVS) RS Wood  <rsw@therandymon.com> - 2014-03-30 14:33 +0000
    Re: Computer Vision Syndrome (CVS) Roger Blake <rogblake@iname.invalid> - 2014-03-30 22:39 +0000
      Re: Computer Vision Syndrome (CVS) philo  <philo@privacy.net> - 2014-03-30 18:01 -0500
        Re: Computer Vision Syndrome (CVS) Bob Eager <news0002@eager.cx> - 2014-03-30 23:13 +0000
        Re: Computer Vision Syndrome (CVS) Huge <Huge@nowhere.much.invalid> - 2014-03-31 08:35 +0000
          Re: Computer Vision Syndrome (CVS) Sylvia Else <sylvia@not.at.this.address> - 2014-03-31 19:49 +1100
          Re: Computer Vision Syndrome (CVS) scott@alfter.diespammersdie.us (Scott Alfter) - 2014-03-31 17:34 +0000
            Re: Computer Vision Syndrome (CVS) Paul Sture <nospam@sture.ch> - 2014-03-31 20:49 +0200
              Re: Computer Vision Syndrome (CVS) Huge <Huge@nowhere.much.invalid> - 2014-03-31 19:50 +0000
    Re: Computer Vision Syndrome (CVS) Randy Westlund <Vorzakir@invalid.invalid> - 2014-04-01 21:07 +0000
      Re: Computer Vision Syndrome (CVS) "John" <j@j.j> - 2014-04-01 16:17 -0700
      Re: Computer Vision Syndrome (CVS) Huge <Huge@nowhere.much.invalid> - 2014-04-02 08:59 +0000
      Re: Computer Vision Syndrome (CVS) polygonum <rmoudndgers@vrod.co.uk> - 2014-04-02 19:43 +0100
        Re: Computer Vision Syndrome (CVS) Randy Westlund <Vorzakir@invalid.invalid> - 2014-04-02 19:03 +0000
          Re: Computer Vision Syndrome (CVS) despen@verizon.net (Dan.Espen) - 2014-04-02 15:18 -0400
    Re: Computer Vision Syndrome (CVS) Will Honea <whonea@whonea.net> - 2014-04-02 13:36 -0600

#2138 — Computer Vision Syndrome (CVS)

From the «talk into my other eye» department:
Title: How to avoid wrecking your vision while staring at a computer screen
Author: Ben Zigterman
Date: Thu, 27 Mar 2014 18:15:40 -0400
Link: http://feedproxy.google.com/~r/TheBoyGeniusReport/~3/vmT80tr47gY/
Podcast Download URL: http://2.gravatar.com/avatar/eb88d0cb561276fd5fc48fe11d32a8c1?s=96&d=identicon&r=G

[image 2][1]

Nowadays, we spend nearly 6 hours each day staring at a display, whether it's
a desktop, laptop, smartphone or tablet. After looking at screens all day,
your eyes may start to feel a bit off, which means you may be suffering from
a condition called Computer Vision Syndrome, or CVS. Symptoms of CVS include
headaches, dry eyes, blurred vision and potentially long-term
nearsightedness.

Continue reading...[1]
[image 3]

Links:
[1]: http://bgr.com/2014/03/27/computer-vision-syndrome-infographic-and-video/ (link)
[2]: http://c2.bgr.com/2014/03/screenshot-2014-03-27-10-34-24.png?w=586 (image)
[3]: http://feeds.feedburner.com/~r/TheBoyGeniusReport/~4/vmT80tr47gY (image)

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#2146

On 2014-03-30, RS Wood <rsw@therandymon.com> wrote:
> Nowadays, we spend nearly 6 hours each day staring at a display, ...

Nowadays? I was doing this over 30 years ago. (Much more than 6 hours
each day for that matter.) No "CVS" symptoms so far. 

-- 
-----------------------------------------------------------------------------
  Roger Blake (Change "invalid" to "com" for email. Google Groups killfiled.)

  NSA sedition and treason -- http://www.DeathToNSAthugs.com
-----------------------------------------------------------------------------

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#2148

On 03/30/2014 05:39 PM, Roger Blake wrote:
> On 2014-03-30, RS Wood <rsw@therandymon.com> wrote:
>> Nowadays, we spend nearly 6 hours each day staring at a display, ...
>
> Nowadays? I was doing this over 30 years ago. (Much more than 6 hours
> each day for that matter.) No "CVS" symptoms so far.
>



Same here.

I've been using a computer for 15 years, I'm 64 years old and do not 
even need reading glasses unless I am trying to read the fine print
on a motherboard.

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#2149

On Sun, 30 Mar 2014 18:01:49 -0500, philo wrote:

> On 03/30/2014 05:39 PM, Roger Blake wrote:
>> On 2014-03-30, RS Wood <rsw@therandymon.com> wrote:
>>> Nowadays, we spend nearly 6 hours each day staring at a display, ...
>>
>> Nowadays? I was doing this over 30 years ago. (Much more than 6 hours
>> each day for that matter.) No "CVS" symptoms so far.
> 
> Same here.
> 
> I've been using a computer for 15 years, I'm 64 years old and do not
> even need reading glasses unless I am trying to read the fine print on a
> motherboard.

I've been starung at monitors for nearly 40 years. I got cancer in one 
eye but no idea if that caused it!

-- 
Use the BIG mirror service in the UK: http://www.mirrorservice.org
My posts (including this one) are my copyright and if @diy_forums on
Twitter wish to tweet them they can pay me £30 a post
*lightning surge protection* - a w_tom conductor

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#2152

On 2014-03-30, philo  <philo@privacy.net> wrote:
> On 03/30/2014 05:39 PM, Roger Blake wrote:
>> On 2014-03-30, RS Wood <rsw@therandymon.com> wrote:
>>> Nowadays, we spend nearly 6 hours each day staring at a display, ...
>>
>> Nowadays? I was doing this over 30 years ago. (Much more than 6 hours
>> each day for that matter.) No "CVS" symptoms so far.
>>
>
>
>
> Same here.
>
> I've been using a computer for 15 years,

Newbie!      :o)

When I started, screens were not an issue - you just had to be able to read
a punch card, and then ASR33 printout ("How do you make the font larger on
this thing?")

-- 
Today is Setting Orange, the 17th day of Discord in the YOLD 3180
“Stupidity cannot be cured. Stupidity is the only universal capital crime;
 the sentence is death. There is no appeal, and execution is carried out
                 automatically and without pity.”

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#2155

On 31/03/2014 7:35 PM, Huge wrote:
> On 2014-03-30, philo  <philo@privacy.net> wrote:
>> On 03/30/2014 05:39 PM, Roger Blake wrote:
>>> On 2014-03-30, RS Wood <rsw@therandymon.com> wrote:
>>>> Nowadays, we spend nearly 6 hours each day staring at a display, ...
>>>
>>> Nowadays? I was doing this over 30 years ago. (Much more than 6 hours
>>> each day for that matter.) No "CVS" symptoms so far.
>>>
>>
>>
>>
>> Same here.
>>
>> I've been using a computer for 15 years,
>
> Newbie!      :o)
>
> When I started, screens were not an issue - you just had to be able to read
> a punch card, and then ASR33 printout ("How do you make the font larger on
> this thing?")
>

Ah yes. ASR33. Awful noisy machine.

Though at least it didn't obscure what you were typing the way the 
(albeit much quieter) Olivettis did.

110 baud. Gotta love it.

Sylvia.

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#2177

In article <bpsnmiF5fkqU2@mid.individual.net>,
Huge  <usenet@huge.org.uk> wrote:
>When I started, screens were not an issue - you just had to be able to read
>a punch card, and then ASR33 printout ("How do you make the font larger on
>this thing?")

L      i  k                  t     h      i           ???
L         k                  t     h                 ?   ?
L      i  k   k   eee       tttt   hhhh   i   ssss       ?
L      i  k  k   e   e       t     h   h  i  s         ??
L      i  kkk    eeeee       t     h   h  i   sss      ?
L      i  k  k   e           t     h   h  i      s   
LLLLL  i  k   k   eee         ttt  h   h  i  ssss      ?

Speed would've been better measured in seconds per character than characters
per second with this approach, though. :-)

  _/_
 / v \ Scott Alfter (remove the obvious to send mail)
(IIGS( http://alfter.us/            Top-posting!
 \_^_/                              >What's the most annoying thing on Usenet?

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#2179

On 2014-03-31, Scott Alfter <scott@alfter.diespammersdie.us> wrote:
> In article <bpsnmiF5fkqU2@mid.individual.net>,
> Huge  <usenet@huge.org.uk> wrote:
>>When I started, screens were not an issue - you just had to be able to read
>>a punch card, and then ASR33 printout ("How do you make the font larger on
>>this thing?")
>
> L      i  k                  t     h      i           ???
> L         k                  t     h                 ?   ?
> L      i  k   k   eee       tttt   hhhh   i   ssss       ?
> L      i  k  k   e   e       t     h   h  i  s         ??
> L      i  kkk    eeeee       t     h   h  i   sss      ?
> L      i  k  k   e           t     h   h  i      s   
> LLLLL  i  k   k   eee         ttt  h   h  i  ssss      ?
>
> Speed would've been better measured in seconds per character than characters
> per second with this approach, though. :-)

I had some rather good examples of ASCII art pinned to my office wall back
in the 1980s.  I don't know who created them but they used backspace in
a creative fashion to produce darker areas by overprinting.

You could tie up a 300 line per minute printer for a lengthy period
to get one or two pages of printout.

-- 
Paul Sture

"In that case," said Napoleon, "let us wait twenty minutes; when the enemy
is making a false movement we must take good care not to interrupt him."

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#2180

On 2014-03-31, Paul Sture <nospam@sture.ch> wrote:
> On 2014-03-31, Scott Alfter <scott@alfter.diespammersdie.us> wrote:
>> In article <bpsnmiF5fkqU2@mid.individual.net>,
>> Huge  <usenet@huge.org.uk> wrote:
>>>When I started, screens were not an issue - you just had to be able to read
>>>a punch card, and then ASR33 printout ("How do you make the font larger on
>>>this thing?")
>>
>> L      i  k                  t     h      i           ???
>> L         k                  t     h                 ?   ?
>> L      i  k   k   eee       tttt   hhhh   i   ssss       ?
>> L      i  k  k   e   e       t     h   h  i  s         ??
>> L      i  kkk    eeeee       t     h   h  i   sss      ?
>> L      i  k  k   e           t     h   h  i      s   
>> LLLLL  i  k   k   eee         ttt  h   h  i  ssss      ?

*applause*

http://www.figlet.org/

>> Speed would've been better measured in seconds per character than characters
>> per second with this approach, though. :-)
>
> I had some rather good examples of ASCII art pinned to my office wall back
> in the 1980s.  I don't know who created them but they used backspace in
> a creative fashion to produce darker areas by overprinting.
>
> You could tie up a 300 line per minute printer for a lengthy period
> to get one or two pages of printout.

I still have a box (somewhere) of paper tapes of assorted ASCII art
with a trivial coding scheme I devised. Given that I no longer have a
paper tape reader, a line printer or the FORTRAN program that decoded
them, I'm not sure why I'm keeping them.


-- 
Today is Setting Orange, the 17th day of Discord in the YOLD 3180
“Stupidity cannot be cured. Stupidity is the only universal capital crime;
 the sentence is death. There is no appeal, and execution is carried out
                 automatically and without pity.”

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#2193

On 2014-03-30, RS Wood wrote:
> Nowadays, we spend nearly 6 hours each day staring at a display, whether it's
> a desktop, laptop, smartphone or tablet. After looking at screens all day,
> your eyes may start to feel a bit off, which means you may be suffering from
> a condition called Computer Vision Syndrome, or CVS. Symptoms of CVS include
> headaches, dry eyes, blurred vision and potentially long-term
> nearsightedness.

I get blurred vision and headaches.  The quality of my vision
actually varies quite a bit depending on what I've been doing in a
given day.

I had great vision until college, when I started spending a lot of
time in the computer labs and got glasses (weak prescription) in my
second year.

Now, I'm 24 and spend 10 - 15 hours a day in front of a screen (90%
of that being work).  I can feel my vision deteriorating.  Yesterday
I needed my glasses to see my computer screen for the first time --
I normally don't wear them for close-up things.  I think in 5 years
I won't be able to see without them.

I try to walk around and take breaks, but... there's work to do.  It
makes me sad to think about what I'm doing to my eyes, but I'm not
sure what I can do about it.  Oh well :/

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#2197

"Randy Westlund" <Vorzakir@invalid.invalid> wrote in message 
news:lhf9ra$bei$1@dont-email.me...
> On 2014-03-30, RS Wood wrote:
>> Nowadays, we spend nearly 6 hours each day staring at a display, whether 
>> it's
>> a desktop, laptop, smartphone or tablet. After looking at screens all 
>> day,
>> your eyes may start to feel a bit off, which means you may be suffering 
>> from
>> a condition called Computer Vision Syndrome, or CVS. Symptoms of CVS 
>> include
>> headaches, dry eyes, blurred vision and potentially long-term
>> nearsightedness.
>
> I get blurred vision and headaches.  The quality of my vision
> actually varies quite a bit depending on what I've been doing in a
> given day.
>
> I had great vision until college, when I started spending a lot of
> time in the computer labs and got glasses (weak prescription) in my
> second year.
>
> Now, I'm 24 and spend 10 - 15 hours a day in front of a screen (90%
> of that being work).  I can feel my vision deteriorating.  Yesterday
> I needed my glasses to see my computer screen for the first time --
> I normally don't wear them for close-up things.  I think in 5 years
> I won't be able to see without them.
>
> I try to walk around and take breaks, but... there's work to do.  It
> makes me sad to think about what I'm doing to my eyes, but I'm not
> sure what I can do about it.  Oh well :/

Don't worry about it - the same thing happened to me in the 60's and there 
wasn't any video terminals at that time at all!! (except for black and white 
TV)<g> - it's just part of growing older - get used to it!! :) 

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#2202

On 2014-04-01, Randy Westlund <Vorzakir@invalid.invalid> wrote:

> Now, I'm 24 and spend 10 - 15 hours a day in front of a screen (90%
> of that being work).  I can feel my vision deteriorating. 

I wouldn't worry about it. I've been sat in front of a screen for the best
part of 37 years now and and my eyesight is OK (with not-too-strong glasses). In
fact as I age, and my eyesight changes (you get more long sighted as you get
older), the prescription has got weaker (I started out short sighted). I
wore glasses for years before I started using computers. The only big
change in recent years is switching to varifocals to correct the loss
of accommodation.

-- 
Today is Boomtime, the 19th day of Discord in the YOLD 3180
“Stupidity cannot be cured. Stupidity is the only universal capital crime;
 the sentence is death. There is no appeal, and execution is carried out
                 automatically and without pity.”

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#2217

On 01/04/2014 22:07, Randy Westlund wrote:
> On 2014-03-30, RS Wood wrote:
>> Nowadays, we spend nearly 6 hours each day staring at a display, whether it's
>> a desktop, laptop, smartphone or tablet. After looking at screens all day,
>> your eyes may start to feel a bit off, which means you may be suffering from
>> a condition called Computer Vision Syndrome, or CVS. Symptoms of CVS include
>> headaches, dry eyes, blurred vision and potentially long-term
>> nearsightedness.
>
> I get blurred vision and headaches.  The quality of my vision
> actually varies quite a bit depending on what I've been doing in a
> given day.
>
> I had great vision until college, when I started spending a lot of
> time in the computer labs and got glasses (weak prescription) in my
> second year.
>
> Now, I'm 24 and spend 10 - 15 hours a day in front of a screen (90%
> of that being work).  I can feel my vision deteriorating.  Yesterday
> I needed my glasses to see my computer screen for the first time --
> I normally don't wear them for close-up things.  I think in 5 years
> I won't be able to see without them.
>
> I try to walk around and take breaks, but... there's work to do.  It
> makes me sad to think about what I'm doing to my eyes, but I'm not
> sure what I can do about it.  Oh well :/
>
You do realise that there are other possible causes, some of which 
possibly have absolutely no connection to computer screens?

For myself, my vision started to deteriorate about six years ago, after 
using computer screens since the 70s. I got "monitor" prescription 
glasses. I needed to use eye drops to keep going. Colour perception 
diminished. Focusing became something I had to think about. I really 
wondered if I might have to do something else.

Then my thyroid test showed deterioration and I was diagnosed 
hypothyroid. With adequate treatment, the improvement in vision and 
everything related to my eyes has been quite remarkable.

Not saying this is the cause for you, there are many.

-- 
Rod

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#2220

On 2014-04-02, polygonum wrote:
> On 01/04/2014 22:07, Randy Westlund wrote:
>> I get blurred vision and headaches.  The quality of my vision
>> actually varies quite a bit depending on what I've been doing in a
>> given day.
>>
>> I had great vision until college, when I started spending a lot of
>> time in the computer labs and got glasses (weak prescription) in my
>> second year.
>>
>> Now, I'm 24 and spend 10 - 15 hours a day in front of a screen (90%
>> of that being work).  I can feel my vision deteriorating.  Yesterday
>> I needed my glasses to see my computer screen for the first time --
>> I normally don't wear them for close-up things.  I think in 5 years
>> I won't be able to see without them.
>>
>> I try to walk around and take breaks, but... there's work to do.  It
>> makes me sad to think about what I'm doing to my eyes, but I'm not
>> sure what I can do about it.  Oh well :/
>>
> You do realise that there are other possible causes, some of which 
> possibly have absolutely no connection to computer screens?
>
> For myself, my vision started to deteriorate about six years ago, after 
> using computer screens since the 70s. I got "monitor" prescription 
> glasses. I needed to use eye drops to keep going. Colour perception 
> diminished. Focusing became something I had to think about. I really 
> wondered if I might have to do something else.
>
> Then my thyroid test showed deterioration and I was diagnosed 
> hypothyroid. With adequate treatment, the improvement in vision and 
> everything related to my eyes has been quite remarkable.
>
> Not saying this is the cause for you, there are many.

Thanks for pointing that out.  Conventional wisdom and the last
optometrist I saw seem to consider screens the most likely cause,
but hearing a few of you guys make points like this makes me feel a
little better.

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#2223

Randy Westlund <Vorzakir@invalid.invalid> writes:

> On 2014-04-02, polygonum wrote:
>> Not saying this is the cause for you, there are many.
>
> Thanks for pointing that out.  Conventional wisdom and the last
> optometrist I saw seem to consider screens the most likely cause,
> but hearing a few of you guys make points like this makes me feel a
> little better.

Just to drive the point home, I've been programming since '64,
did my first online application in '71.  Didn't need any glasses
until I hit age 55.  Still get by with +1.25 glasses 13 years later.

It appears looking at computer screens is very, very good for
the eyes.

The flicker in an improperly set up CRT probably could bother
your eyes.  (Never bothered me.)  But these flat panel LCDs
are pretty much like looking at the real world except for
the fact that you only focus at one depth.

If you worry a lot, look around a bit to avoid that.

-- 
Dan Espen

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#2225

RS Wood wrote:

> Nowadays, we spend nearly 6 hours each day staring at a display, whether
> it's a desktop, laptop, smartphone or tablet. After looking at screens all
> day, your eyes may start to feel a bit off, which means you may be
> suffering from a condition called Computer Vision Syndrome, or CVS.
> Symptoms of CVS include headaches, dry eyes, blurred vision and
> potentially long-term nearsightedness.
> 

I would urge a full vision exam by a competent ophthalmologist.  In my case, 
I had the beginnings of cataracts forming but the physical location was just 
right to cause problems without being really visible in normal exams.  It 
would likely have fairly rapidly grown to where it was readily visible but 
it was miserable even at the early stage.  Vision problems ranged from 
subtle to un-mistakable and varied day to day as the spot wandered a bit.  
Surgery and lens replacement - one eye at a time - cleared things up.  I fly 
and drive w/o glasses but require them for close work and the computer 
screen to avoid eye strain.  It won't go away on its own so admit that 
getting old is not optional and go see a vision pro.  Ask around to get 
recommendations for the best one available in your location. 

-- 
Will Honea

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