4K is already useful...

[pawel86ck]

All sitting too close to a TV really does is put some wear and strain on the muscles and lenses in their eyes. The closer you look at things the more the muscles stay contracted and squeeze the lens for close up vision. That can, over time, make someone's lenses less malleable when trying to adjust the focus between looking up close and far away.

I have speend 5 years studying eye problems, and I'm 100% sure, you are totally wrong. Lolking at close distance is very relaxing (for example 50cm-2 meters distance), to the healthy eyes. In reality, whats damaging our eyes is posture and straining to see, people with blury vison look at world very differently (they dont look for small details, and they straining to see, while normal looking person is relaxing his eyes). Real problem arise, when you put your glasses on, because glasses are prescribed for 6 meters, so eyes no longer can relax below 6 meters distance (anythig below 6 meters will strain your eyeball).

[Penton-Man]

Originally Posted by Auditor55

...For a “tiny” 55-inch screen, you’ll need to be 3.5 feet or closer...

Meaning, in order to take maximal viewing advantage of the 4K set (as opposed to an HD set). However, that does NOT mean that a typical observer can not identify the superior picture quality on 55” 4K TVs at 9 ft. distance.

See the last paragraph here….
https://forum.blu-ray.com/showthread...or#post9101078

Point being, the improvement in picture quality with a 55-inch screen falls off as you approach the 9 ft. distance mark but, people can still identify a difference at ~ that distance with 4K TVs. The ‘benefit’ derived, if you will, beyond 3.5ft. is dependent upon the individual’s own value scale , i.e. his disposable income used for TV watching.

For instance, if you are 20/30 or 20/20-3 at your next refraction in your optometrist’s office and you have to pay for all your lenses and frames out-of-pocket, are you willing to fork out a couple hundred dollars (or more) for a new set of quality anti-reflective lenses and frames in order to give you ‘20/20’ vision? Some would….some wouldn’t.

P.S.
b.t.w., after re-checking, I was wrong here….
https://forum.blu-ray.com/showthread...al#post9093474

as there were only 6 (rather than 7) sequences BUT the observer sample actually consisted of over 70 subjects (rather than 27).

[Penton-Man]

Originally Posted by Tekka

All sitting too close to a TV really does is put some wear and strain on the muscles and lenses in their eyes. The closer you look at things the more the muscles stay contracted and squeeze the lens for close up vision. That can, over time, make someone's lenses less malleable when trying to adjust the focus between looking up close and far away.

Originally Posted by pawel86ck

I have speend 5 years studying eye problems, and I'm 100% sure, you are totally wrong....

Tekka’s not totally wrong but, it’s important to place what he said into proper perspective so that readers don’t get paranoid and jump to erroneous conclusions.

Tekka is basically referring to premature or early-onset presbyopia for which there is some evidence to suggest that certain occupational related (continuous, ongoing close-up work like embroidery, computer work, or reading) rather than casual TV viewing can be a rare risk factor for that problem.

See p.5 – p.6 for Risk factors…. http://www.aoa.org/documents/optometrists/CPG-17.pdf

Also, keep in mind “little is known about the role of the ciliary muscle and how it may or may not affect the loss of accommodation with age" (http://www.optometry.co.uk/news-and-.../?article=5852) <- that out the #1 perennially ranked ophthalmic hospital in the United States in regards to their cutting edge research in anterior segment OCT imaging.

[LogMeIn]

I have been trying to get a good tv for almost three YEARS and suddenly when I started, all tvs have given me big time headaches and eye problems. No doctors can figure out the problem. And what's weird is different tvs bother me in different ways, but they all still bother me. Most plasmas make me feel like the sides of my head are being SQUEEZED. The kuro elites don't bother my head nearly as much as other plasmas for some reason. The sony hx929 gave me more of a pain in my head. The LG OLED makes my eyes feel majorly fatigued and some oily substance comes out.

It's really frustrating that I can't figure out why it's all happening. I sure can't go without a tv, so I wish I could figure out how to know what the common theme is. I've had a 40 inch all the way up to 55 inches do it, so it's not only size, not only panel type, etc... I've had some look bright, some look dull. Some had flicker and some I didn't notice flicker. I have sat close and not close.

And even more odd, in the beginning when plasmas did it, I could go turn on my old LCD and it would WASH AWAY the discomfort. But had I watched NO TV at all instead of the LCD, the discomfort would not leave. It was like the LCD was healing it somehow. But now even if I watch my LCD it bothers me.

So now since only the kuros seem "ok" on ym head, but still bother it, I am forced to look for only kuros and mine have black level issues and nobody wills hip me a 101fd.

I do have a vision problem, so usually would sit closer (and sat right up at that 40 inch one for 5+ years in a row and in vivid mode before starting to use closer to calibrated settings) and so I wondered all along if FOR ME 4k would be ideal as it may be crisper for me, sitting closer than most. For some reason when I don't have glasses on the OLED and many LED sets look blurry, yet the kuro looks not too blurry even with glasses not on.

Oh, also I sit literally three inches form my computer monitor, every day, many hours per day, have been using this monitor for 8 years. It makes me also wonder if some of the issue is going back and forth between right up at a LCD monitor and then watching a plasma.

[Penton-Man]

Originally Posted by LogMeIn

I have been trying to get a good tv for almost three YEARS and suddenly when I started, all tvs have given me big time headaches and eye problems. No doctors can figure out the problem...

PM me your age and location. I’ll see if I can offer you a recommendation as to a referral for further evaluation.

[Steedeel]

Originally Posted by LogMeIn

I have been trying to get a good tv for almost three YEARS and suddenly when I started, all tvs have given me big time headaches and eye problems. No doctors can figure out the problem. And what's weird is different tvs bother me in different ways, but they all still bother me. Most plasmas make me feel like the sides of my head are being SQUEEZED. The kuro elites don't bother my head nearly as much as other plasmas for some reason. The sony hx929 gave me more of a pain in my head. The LG OLED makes my eyes feel majorly fatigued and some oily substance comes out.

It's really frustrating that I can't figure out why it's all happening. I sure can't go without a tv, so I wish I could figure out how to know what the common theme is. I've had a 40 inch all the way up to 55 inches do it, so it's not only size, not only panel type, etc... I've had some look bright, some look dull. Some had flicker and some I didn't notice flicker. I have sat close and not close.


And even more odd, in the beginning when plasmas did it, I could go turn on my old LCD and it would WASH AWAY the discomfort. But had I watched NO TV at all instead of the LCD, the discomfort would not leave. It was like the LCD was healing it somehow. But now even if I watch my LCD it bothers me.

So now since only the kuros seem "ok" on ym head, but still bother it, I am forced to look for only kuros and mine have black level issues and nobody wills hip me a 101fd.

I do have a vision problem, so usually would sit closer (and sat right up at that 40 inch one for 5+ years in a row and in vivid mode before starting to use closer to calibrated settings) and so I wondered all along if FOR ME 4k would be ideal as it may be crisper for me, sitting closer than most. For some reason when I don't have glasses on the OLED and many LED sets look blurry, yet the kuro looks not too blurry even with glasses not on.

Oh, also I sit literally three inches form my computer monitor, every day, many hours per day, have been using this monitor for 8 years. It makes me also wonder if some of the issue is going back and forth between right up at a LCD monitor and then watching a plasma.

Hi, just wondering if your eyelids are inflamed (look red rather than pink) also, could it be a coincidence that this condition started as you bought a new tv and viewing stuff on the screen is aggravating your condition? I have my reasons for asking but will wait for your reply first.

[LogMeIn]

I haven't noticed my eyelids being inflamed. But as far as the other, it's always possible something else started it, but tvs definitely make whatever it is get much worse, currently.

I remember I stayed at my parents' house when they were out of town and watched their led and my eyes were all fatigued and I believe watering. But I guess I figured it was settings and I liked the picture and after that day I started looking for me a new tv. I tried some led sets and I honestly don't recall if they bothered me in the beginning, but for whatever reason I returned them and got a Samsung plasma. That plasma made my eyes fatigued and watering too.

Then Panasonic plasmas made my head feel squeezed. And at some point I found out I had a cataract, but I am not so sure that is the issue, but who knows.

It may sound weird, but I seriously wonder to myself if the plasma actually literally damaged something related to my head or eyes. At one point if I switched from a plasma back to my old LCD it healed the problem, so it's beyond bizarre. I originally thought maybe it's flicker, but with every type of tv bothering it, I doubt it's that, even though it's still possible since every tv technically "flickers" in some sort of way. Oh also CRTs are known for bothering people, yet my CRTs never did any of this when I owend them.

[Steedeel]

Originally Posted by LogMeIn

I haven't noticed my eyelids being inflamed. But as far as the other, it's always possible something else started it, but tvs definitely make whatever it is get much worse, currently.

I remember I stayed at my parents' house when they were out of town and watched their led and my eyes were all fatigued and I believe watering. But I guess I figured it was settings and I liked the picture and after that day I started looking for me a new tv. I tried some led sets and I honestly don't recall if they bothered me in the beginning, but for whatever reason I returned them and got a Samsung plasma. That plasma made my eyes fatigued and watering too.

Then Panasonic plasmas made my head feel squeezed. And at some point I found out I had a cataract, but I am not so sure that is the issue, but who knows.

It may sound weird, but I seriously wonder to myself if the plasma actually literally damaged something related to my head or eyes. At one point if I switched from a plasma back to my old LCD it healed the problem, so it's beyond bizarre. I originally thought maybe it's flicker, but with every type of tv bothering it, I doubt it's that, even though it's still possible since every tv technically "flickers" in some sort of way. Oh also CRTs are known for bothering people, yet my CRTs never did any of this when I owend them.

I have a eye condition for life and when it's at its worst my eyes water and feel sore when watching tv. I get headaches that the doctors believe may be related to my condition. It's all about control for me because I am a movie addict.

Also, have you been tested for dry eyes? My advice would be to see a eye specialist and also go to a opticians. Please note, I'm not trying to tell you what condition you have as I believe it is dangerous to give out advice on the internet without knowing the full facts. All I am doing (like Penton Man) is suggesting a visit to a eye specialist. Maybe, if you get to the bottom of this issue you can start planning a course of action to best enable you to enjoy your movie/tv watching. Bless you, best of luck. Let me know how things develop?

[Steedeel]

Originally Posted by Penton-Man

PM me your age and location. I’ll see if I can offer you a recommendation as to a referral for further evaluation.

Yes, best to sort this issue out ASAP isn't it?

[Penton-Man]

Originally Posted by LogMeIn

It may sound weird, but I seriously wonder to myself if the plasma actually literally damaged something related to my head or eyes.

Well personally, I know of no credible evidence for plasma TVs being a cause of phototoxicity to the retina so I wouldn’t worry about that.

[Penton-Man]

Originally Posted by Steedeel

Yes, best to sort this issue out ASAP isn't it?

I sent LogMeIn a PM a few moments ago. It’s always good to get other qualified opinions.

[Betamax]

I dont care how high a resolution is if the panel is not capable of correct gamma and color reproduction. Even at 4k and 300 inches some sets are still gonna be a swing and a miss. If your going for a wow factor of having such a large panel then great, but I dont get the point of having 4 or 8k resolution with 100 inch or more display if it cant decode the grid properly.

[Badas]

^

Agreed. I was in the market for a new projector and viewed the Sony 4k. It had great resolution but had terrible native contrast and is to reliant on a dynamic iris which screws Gamma. So I settled on a DreamVision Yunzi which has 10 times more native contrast. So far more accurate.

[LogMeIn]

Samsung's HU9000 sure has some great reviews on Amazon, including one by a kuro 9g owner. Not that most tvs don't have great reviews, but with so many on there liking the Samsung, at least those do think the 4k makes a difference and even with it being edge lit, it's great.

I bought and am returning an OLED and it has had a lot of problems. I go back and forth between a refund and replacement. Even as great as it is, other things do matter, such as color accuracy not as possible as on the kuro, horrible uniformity issues in grays for some reason, seemed to me something burnt in within 2 hours of owning it and not having anything stationary on the screen, lazy pixels, most have dead pixels, etc.

The black level and clarity is great, so I am still tempted to get a replacement, but then I think how the 4k 2014 one will be down to the same price I paid on this one in probably less than a year from now, so I wonder if I can be patient that long. lol Honestly, I just want a WORKING 101fd elite, but it's hard to find one. I have two 111fd sets with black level issues, unless my eyes are making me see exaggerated light output maybe. I can't find a calibrator to cheaply simply test the current black level on it without calibrating, where I get an idea.

Thanks for all of the suggestions as far as the eye and head issues. I am definitely going to go to some people. Just so far nobody has known, so I am not too optimistic.

[Penton-Man]

Originally Posted by LogMeIn

Thanks for all of the suggestions as far as the eye and head issues. I am definitely going to go to some people. Just so far nobody has known, so I am not too optimistic.

Alas, the whole *process* increased financial cost as well as personal time (traveling, waiting, etc. during multiple clinic visits) tends to wear out a lot of patients when it comes to chronic problems.

Good luck. Your non age-related cataract is interesting just on its own...without your other ailment.

[LogMeIn]

Yeah and the specialist didn't really seem to care much other than it was there. I;m just curious even though I guess it won't make much difference now if I were to figure out what contributed. I definitely don't remember any injury to the eye. I think a lot of people related to me get them, but not young.

[Penton-Man]

Originally Posted by LogMeIn

Yeah and the specialist didn't really seem to care much other than it was there. I;m just curious even though I guess it won't make much difference now if I were to figure out what contributed. I definitely don't remember any injury to the eye. I think a lot of people related to me get them, but not young.

That’s unfortunate as there are competent, qualified professionals out there who are willing to take the time to explain things. Univ. of Md. Med Ctr posts a nice FAQ on the different possible etiologies, scroll down to ‘Causes’
….http://umm.edu/health/medical/report...cles/cataracts

And, if in the future, the cataract (assuming you’re not being *over diagnosed* in the first place) progresses to a point where it significantly affects your quality of life, daily….see ‘Questions’ on that link.

[LogMeIn]

My assumption from reading that is that indeed low level radiation from monitors caused it, despite them saying no studies have backed that up. So doctors, scientists, whoever, may just never know, but I do because it so happens that I've spent 20 years right up at monitors. I don't recall any injury. I have been inside a large portion of my lfie, so highly doubtful the sun did it. Hadn't ever had high blood sugar. I wonder if my head issues related to watching tvs are due to something damaged from radiation too.

I already knew "most" of what was on that page, but it just reminds me, also, that no matter how routine they claim the surgery is, there are horrible outcomes that "could" happen, such as blindness. And I remember reading on a medical site where they let people comment and a HUGE percentage of the ones commenting said their surgeries went badly. One had blood all over the place when she took her patch off. Many had worse vision than before they had it done. I think one had an eye infection.

[Penton-Man]

Originally Posted by LogMeIn

that no matter how routine they claim the surgery is, there are horrible outcomes that "could" happen...

As someone with professional interest in motion picture imaging, display technology and the human visual system (run NAB’s Technology Summit clip as published on YouTube - https://forum.blu-ray.com/showthread...gy#post9168082 ) , I often have advanced conversations with my surgical Ophthalmology friends who inform me that complications are rare but when they do occur, they can be absolutely devastating, for example… if all treatments for CME prove unsuccessful .

Predisposing factors to CME that you should be aware of that can up the poor outcome rate/risk of a cataract surgical procedure…
http://www.ncbi.nlm.nih.gov/pubmed/17720069

[LogMeIn]

Does anyone have any idea what would cause some oily substance to come out of my eyes? Oddly when watching a couple of the many tvs I've tried, that happened. The OLED is the latest to do it. My eyes will feel fatigued and like something is in them while watching the tv and at some point there is some oily something there. I wonder what that even means...