High Definition and Ocular Health

[Musashi]

What is currently known about the long term effects of high definition viewing on the health of your eyes? Particularly, I was curious how its effects differ (better/worse/=) from watching equivalent hours of standard def.

I also found this fairly intersting: http://www.swift.ac.uk/vision.pdf
It suggests that high definition pushes the upper limits of what human eyes can detect.

Edit: http://www.clarkvision.com/imagedeta...esolution.html This on the other hand suggests what I would think: that real life's equivalent pixel limit is much higher, even for a given screen size. It could be that the previous article is using retinal detection while the 2nd is citing full effect of 2 eyes+the brain working together.

[DC_Street]

how can HD hurt your eyes worse than SD, I get headaches while watching SD but I'm fine with HD. HD is still no where near what the eyes can handle in everyday life, real life is like 1,000,0080P

[Musashi]

Originally Posted by DC_Street

how can HD hurt your eyes worse than SD, I get headaches while watching SD but I'm fine with HD. HD is still no where near what the eyes can handle in everyday life, real life is like 1,000,0080P

That's what I had generally figured; Still wanted to wanted to do some research on the subject. My ? is one of curiousity, nothing assumed.

[rebfandan]

Originally Posted by DC_Street

how can HD hurt your eyes worse than SD, I get headaches while watching SD but I'm fine with HD. HD is still no where near what the eyes can handle in everyday life, real life is like 1,000,0080P

Yeah, I love it when people say HD looks better than real life.

Funny story: About 6 years ago when I was still in school, one of my roommates got an HD Samsung picture-tube set, probably the last they made. I think it got 1080i (?) We would watch anything in HD in those days. We would even sit and watch nature shows just to watch leaves blow in HD. Anyway, one day we're riding to class and we see 2-3 deer in a field, so we slow down to look at them, and the rather bone-headed roommate says, "Man, just think how good those would look in HD!" Which my other roommate and I found hilarious and explained that what he was seeing was the best it would ever get.

[Musashi]

Originally Posted by rebfandan

Yeah, I love it when people say HD looks better than real life.

Funny story: About 6 years ago when I was still in school, one of my roommates got an HD Samsung picture-tube set, probably the last they made. I think it got 1080i (?) We would watch anything in HD in those days. We would even sit and watch nature shows just to watch leaves blow in HD. Anyway, one day we're riding to class and we see 2-3 deer in a field, so we slow down to look at them, and the rather bone-headed roommate says, "Man, just think how good those would look in HD!" Which my other roommate and I found hilarious and explained that what he was seeing was the best it would ever get.

I'm still curious of theoretical resolution limits, but one things for sure: real life isn't confined to a screen size.

[Terjyn]

Real life is analog, not digital, so it doesn't even really make sense to compare it to a High Def signal.

And I don't think the eye has nearly as high of a "pixel resolution" as you'd think anyway, your eye/brain plays a ton of tricks to piece things together, which is where optical illusions come from. What you see above a certain point isn't "real".

Course this is all speculation, I'm in no way a certified eye expert.

[phlydude]

The problem with looking at things in real life is the atmospheric conditions. Often, the HD content is filtered through a UV lens and/or polarized optics. Plus, the mist and fog often refracts light and causes glare that lenses seem to defeat.

I find myself saying that the HD content is clearer than what I would see outside - because I don't have polarized, UV filtering eyes that can get through the fog, mist and polution in the air each day.

[john_1958]

Originally Posted by DC_Street

how can HD hurt your eyes worse than SD, I get headaches while watching SD but I'm fine with HD. HD is still no where near what the eyes can handle in everyday life, real life is like 1,000,0080P

I liked how hd looked 9 years ago when it was Eye-Popping Video

now it just looks like a clear normal set

[john_1958]

Originally Posted by rebfandan

Yeah, I love it when people say HD looks better than real life.

Funny story: About 6 years ago when I was still in school, one of my roommates got an HD Samsung picture-tube set, probably the last they made. I think it got 1080i (?) We would watch anything in HD in those days. We would even sit and watch nature shows just to watch leaves blow in HD. Anyway, one day we're riding to class and we see 2-3 deer in a field, so we slow down to look at them, and the rather bone-headed roommate says, "Man, just think how good those would look in HD!" Which my other roommate and I found hilarious and explained that what he was seeing was the best it would ever get.

back then the hd probually was higher bandwidth

[STARSCREAM]

Originally Posted by rebfandan

Yeah, I love it when people say HD looks better than real life.

Funny story: About 6 years ago when I was still in school, one of my roommates got an HD Samsung picture-tube set, probably the last they made. I think it got 1080i (?) We would watch anything in HD in those days. We would even sit and watch nature shows just to watch leaves blow in HD. Anyway, one day we're riding to class and we see 2-3 deer in a field, so we slow down to look at them, and the rather bone-headed roommate says, "Man, just think how good those would look in HD!" Which my other roommate and I found hilarious and explained that what he was seeing was the best it would ever get.

LOL.

[toef]

You haven't seen the world until you've seen it in HD.

http://www.youtube.com/watch?v=mKYKyIObXyM

[DC_Street]

I was going to quote you and make a remark until I saw your sig

[Mike53421]

Originally Posted by rebfandan

Funny story: About 6 years ago when I was still in school, one of my roommates got an HD Samsung picture-tube set, probably the last they made. I think it got 1080i (?) We would watch anything in HD in those days. We would even sit and watch nature shows just to watch leaves blow in HD. Anyway, one day we're riding to class and we see 2-3 deer in a field, so we slow down to look at them, and the rather bone-headed roommate says, "Man, just think how good those would look in HD!" Which my other roommate and I found hilarious and explained that what he was seeing was the best it would ever get.

Haha that's awesome, just don't tell people you graduated from the same school.

[toef]

Originally Posted by DC_Street

I was going to quote you and make a remark until I saw your sig

Haha, I'll make an exception.

Just this once.

Go ahead and quote me.

[DC_Street]

I'll save it for another time, I do not remember what I was going to say, haha

[Sylin]

Originally Posted by Terjyn

Real life is analog, not digital, so it doesn't even really make sense to compare it to a High Def signal.

Well, in truth, it is both and neither. A more appropriate analogy would be that human vision is in stereo, whereas most artificial image sources are mono.

Camera lenses can duplicate an image, but they cannot accurately interpret the millions of details the human eye + brain combo can manage. For all we know about anatomy and physiology, much of how human sight works is based upon assumptions. It's still very much a mystery.

[Musashi]

Originally Posted by Sylin

Well, in truth, it is both and neither. A more appropriate analogy would be that human vision is in stereo, whereas most artificial image sources are mono.

Camera lenses can duplicate an image, but they cannot accurately interpret the millions of details the human eye + brain combo can manage. For all we know about anatomy and physiology, much of how human sight works is based upon assumptions. It's still very much a mystery.

I'm thinking I should take this inquiry to my eye doctor when I go. I would like to know if hi-def is indeed easier on the eyes, but I'll still eat my carrots regardless.

This all makes me wonder how much difference would a caliber beyond 1080p hi-def provide, and at what screen size would it start to become noticeable.

Side note for Sylin: I remember you mentioning you keep bees. I've a few ?s in that subject if you'd like to start an OT thread for that.

[Sylin]

Originally Posted by Musashi

I'm thinking I should take this inquiry to my eye doctor when I go. I would like to know if hi-def is indeed easier on the eyes, but I'll still eat my carrots regardless.

This all makes me wonder how much difference would a caliber beyond 1080p hi-def provide, and at what screen size would it start to become noticeable.

Side note for Sylin: I remember you mentioning you keep bees. I've a few ?s in that subject if you'd like to start an OT thread for that.

I'd be interested to hear what your eye doctor says regarding this subject. Sounds interesting.

As for the bees, you're not the first person to ask, but you are the first to suggest a thread. I'll get one started and see if there's any interest. Thanks for the suggestion.