Eye Strain and Eye Health

[Haxag0n]

Does anyone know if there are any scientific/medical studies about the best distance of a display for the least eye damage?

Also, what are the actual risks of too much blue-light?

[themctipers]

blue light risks are fucking up your sleep pattern

 

i guess the best distance would be the least

larger the monitor the more blue light the more radiation or some shit  

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The main effect of blue light as far as I know is that it suppresses the production of melatonin making it harder to naturally fall asleep at night.

 

The ideal distance, I suppose, would be the distance at which the screen is in focus without having to consciously focus on it.  This will vary by person since some are near-sighted, some far-sighted, etc.  Staring at a very close screen for a long period of time (or a close anything) will temporarily (a few hours maybe at most) make you near sighted, but (and this is just my theory) doing so for large periods of time every day for many years can have a cumulative permanent effect.

[GoodBytes]

8 minutes ago, themctipers said:

blue light risks are fucking up your sleep pattern

Not proven in anyway... it might affect some people, or a placebo effect to them. Being confort creatures, we do prefer warmer colors, probably it reminds us of warmess and comfort, but this supposition is just as valid as the ones said on how "blue light is bad for you".

 

 

[GoodBytes]

12 minutes ago, Haxag0n said:

Does anyone know if there are any scientific/medical studies about the best distance of a display for the least eye damage?

Also, what are the actual risks of too much blue-light?

Unless you are looking at a laser, or super bright screen at night after for extended period of time, or any strong light source, where it put excessive strain to your iris, and damage to your eyes retina, monitors don't cause eye damage.

 

The only discomfort to your eyes and brain is if your monitor is using a PWM driven backlight instead of using a dimmer circuit, where to control the intensity of the back light, instead of having the backlight deliver less light, it flickers between on and off rapidly. This can cause, if you are PWM sensitive, dry eyes as you having a hard time focusing on the display, or headaches. Of course, this exclude other medical conditions which you need to see with your doctor and optimistic professional who will better asses the situation can provide solutions to the problem or advice to cope with it.

[vanished]

7 minutes ago, GoodBytes said:

Not proven in anyway... it might affect some people, or a placebo effect to them. Being confort creatures, we do prefer warmer colors, probably it reminds us of warmess and comfort, but this supposition is just as valid as the ones said on how "blue light is bad for you".

 

 

To quote Harvard University neuroscientist Anne-Marie Chang,

Quote

We have known for quite awhile now that light is the most powerful cue for shifting the phase or resetting the time of the circadian clock. We also know that melatonin is present at low levels during the day, begins being released a few hours before bedtime and peaks in the middle of the night. Past studies have shown that light suppresses melatonin, such that light in the early evening causes a circadian delay, or resets the clock to a later schedule; and light in the early morning causes a circadian advancement, or resets the clock to an earlier schedule.

 

Recent studies have shown that short-wavelength [blue] light has a greater effect on phase shifting the circadian clock and on melatonin suppression.

 

[Mira Yurizaki]

This may be completely subjective. i.e., just because someone says "you need to be 24 inches from the monitor" doesn't mean that's something you need to strive for. You should adjust yourself for the best amount of comfort you think you feel. If you are constantly straining to look at something on the screen, you need to adjust something.

 

6 minutes ago, GoodBytes said:

Not proven in anyway... it might affect some people, or a placebo effect to them. Being confort creatures, we do prefer warmer colors, probably it reminds us of warmess and comfort, but this supposition is just as valid as the ones said on how "blue light is bad for you".

As anecdotal evidence, I sleep just fine with my tablet playing YouTube videos. And in fact, I prefer it.

[Mira Yurizaki]

1 minute ago, JayKay3000 said:

Because the video helps your mind relax. You could easily tell yourself a story, anything to clear you mind of many thoughts to help aid sleep.

Then it begs the question of whether or not blue light in general is bad for you for sleep or if you have to actually see it.

 

Because I also don't feel like I'm losing sleep quality if I don't give myself the recommended half hour of "no screen time"

[GoodBytes]

15 minutes ago, Ryan_Vickers said:

To quote Harvard University neuroscientist Anne-Marie Chang,

 

And yet, astronauts at the International Space Station have 0 problem with their internal clock of Earth, despite having non warm lights, and being outside of Earth for extended period of time.

 

Also, carrots are horrible for you, based on studies. Doesn't mean that a study show something that it is true. That is why you have other studies taking a new approach or push the previous study forward and discover to not be true. We see this time and time again, like how many colors the human eye can see.

[vanished]

Just now, GoodBytes said:

And yet, astronauts at the International Space Station have 0 problem with their internal clock of Earth, despite having non warm lights, and being outside of Earth for extended period of time.

well what does "0 problems" mean?  It's possible they could be affected but still be fine with it.  After all, I'm staring at a screen until right before bed every day too, but just because I can still sleep doesn't necessarily mean it's not affecting me.  The question needs to be a) if bright lights alter your sleep cycle (in any measurable, statistically significant way, not just to "problematic levels") which is already proven to be true, and b) if blue light is a particularly effective part of the visible spectrum for causing this effect, which, from what I can tell, research suggests it is.

[Stroal]

4 minutes ago, GoodBytes said:

And yet, astronauts at the International Space Station have 0 problem with their internal clock of Earth, despite having non warm lights, and being outside of Earth for extended period of time.

But they do.

 

In regards to OP, I've been working on computers for 20 years, and I still have better than 20/20 eyesight. So I'm not too sure how all of this got started. Just make sure your monitor isn't too bright, and you aren't in total darkness all the time on the computer.

[GoodBytes]

1 minute ago, Ryan_Vickers said:

well what does "0 problems" mean?  It's possible they could be affected but still be fine with it.  After all, I'm staring at a screen until right before bed every day too, but just because I can still sleep doesn't necessarily mean it's not affecting me.  The question needs to be a) if bright lights alter your sleep cycle (in any measurable, statistically significant way, not just to "problematic levels") which is already proven to be true, and b) if blue light is a particularly effective part of the visible spectrum for causing this effect, which, from what I can tell, research suggests it is.

We can agree on those questions. However, for a healthy individual. Blue light is a none issue. Now, of you take medication or you are sensitive on something or you have. health problem which may or not be recognized, then that is a different story.

[dfsdfgfkjsefoiqzemnd]

22 minutes ago, Stroal said:

Just make sure your monitor isn't too bright, and you aren't in total darkness all the time on the computer.

Lighting does indeed affect the amount of eyestrain.  Especially ambient lighting behind the monitors can relieve that, assuming your desk is up against a wall, of course.

 

I have always been sensible to light so I tend to have my backlight set very low (as low as my screens can go without going completely dark).  Despite that I was still getting massive headaches and often pain in the eyes themselves. I was working with the lights in the room on and behind me, but that didn't really help.

Eventually I put 4 LED strips on the back of my monitors to light the wall behind them.  That completely solved it for me.  No more painful eyes, I went from 3 headaches per week to ... well ... I had 2 PC-related headaches so far this year.

 

[vanished]

25 minutes ago, Captain Chaos said:

Lighting does indeed affect the amount of eyestrain.  Especially ambient lighting behind the monitors can relieve that, assuming your desk is up against a wall, of course.

 

I have always been sensible to light so I tend to have my backlight set very low (as low as my screens can go without going completely dark).  Despite that I was still getting massive headaches and often pain in the eyes themselves. I was working with the lights in the room on and behind me, but that didn't really help.

Eventually I put 4 LED strips on the back of my monitors to light the wall behind them.  That completely solved it for me.  No more painful eyes, I went from 3 headaches per week to ... well ... I had 2 PC-related headaches so far this year.

 

This is something I've always heard but never understood.  People say it's bad to read a book in a dark room, or stare at a bright screen when the rest of the room is dark, but why?  What is that going to do?

[Maxpphire]

Honestly what I would do is consult an ophthalmologist on whats good for your specific eyes and take their advice.

 

I do use a Blue Light Filter on my phone which auto turns on around the time I fall asleep. It doesn't seem to help much on whether or not I actually fall asleep around that time. I tend to play Pictrogram like games on my phone to turn off my mind and relax. Sometimes I fall asleep around 3:30am like I'm supposed to, or sometimes (like as of late) I'll end up staying up until past 8am and be dead when I wake up.

[dfsdfgfkjsefoiqzemnd]

1 minute ago, Ryan_Vickers said:

People say it's bad to read a book in a dark room, or stare at a bright screen when the rest of the room is dark, but why?  What is that going to do?

Might be related pupillary dilation, but then again I'm no eye specialist.