Seeing differant colors through each eye.



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Wolfpup
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Mon Aug 16, 2010 8:23 am

hyperlexian wrote:
i believe there is a reason for this, at least in its subtle permutations (slightly different colours in each eye). i think it has something to do with our binocular vision - if the colours were identical in each eye, we would not see in our usual three dimensions (like 3D glasses). don't remember where i read this.


It's our brain's processing + having two slightly different views that lets us perceive depth.

I'd assume most people see colors in both eyes identically (or close to it) though it makes sense it would be possible for the number or distribution of color receptors in both eyes not to be identical. Interesting too as it lets someone more easily understand how another person might see the world in different colors!



Julian94
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Mon Aug 16, 2010 9:14 am

I always assumed that that was due to the fact that I sometimes in my youth I would point a (>5 mW) red laser directly into my right eye.


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Wolfpup
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Mon Aug 16, 2010 10:05 am

Could well be! NOT a great thing to do 8O



Daftwrist
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Mon Aug 16, 2010 10:22 am

Yes I noticed this a while ago, but then I realised that it's probably because each eye is getting a different level of light exposure due to your position. So when you shut the one with more light you see more blue/green, and when you shut the eye that was getting more shadow / darkness, you see more orange/yellow (or the reverse I don't remember). If both eyes are getting the same light exposure (you are sitting directly in front of a light or out on a bright sunny day not in the shade), both eyes will see colours about equal.

It's due to dark adaption of the retina of the eye. The receptors will see colour differently depending on whether they are exposed to bright light or dim light (or no light/darkness). Each of our eyes are getting a slightly different dose of light because they are in different posotions, so if you have a light on the right side of your face your right eyes is getting more light than your left eye....try this, cover one eye with your hand for a few minutes so it can adapt to the darkness, then open it and cover your other eye, ...switch between them...the colours will look different one eye will see a greenish tint, the other a reddish tint...ok that's the best I can explain it.

Oh another thing I noticed, if you shut your eyes on a bright sunny day you still get light through your eyelids but it is tinted red due to blood vessels. Then when you open your eyes, everything will look greenish. I forget why but something about how your photoreceptors process colour. Similarly, they have optical illusions in psych books where you stare at this pattern with red stripes and then you look at a white plank space - the wall or something, and you see the after image of stripes but they'll be green instead of red. Photoreceptors are tricky like that.



Last edited by Daftwrist on Mon Aug 16, 2010 10:40 am, edited 2 times in total.

starquake
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Mon Aug 16, 2010 10:36 am

bye



Last edited by starquake on Tue Aug 17, 2010 8:15 am, edited 1 time in total.

hyperlexian
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Mon Aug 16, 2010 12:58 pm

Wolfpup wrote:
hyperlexian wrote:
i believe there is a reason for this, at least in its subtle permutations (slightly different colours in each eye). i think it has something to do with our binocular vision - if the colours were identical in each eye, we would not see in our usual three dimensions (like 3D glasses). don't remember where i read this.


It's our brain's processing + having two slightly different views that lets us perceive depth.

I'd assume most people see colors in both eyes identically (or close to it) though it makes sense it would be possible for the number or distribution of color receptors in both eyes not to be identical. Interesting too as it lets someone more easily understand how another person might see the world in different colors!

yes, that is the primary way in which we obtain our binocular vision, but i de believe that colour perception helps add depth. it is a phenomenon that has been observed for some length of time, but it is very difficult to quantize each person's variability (the same inherent problem exists in each person describing the way 'red' is perceived, for example).

here is a book from 1957 that refers to the phenomenon of inter-eye colour perception variability:

http://www.jstor.org/pss/1419574


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hyperlexian
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Mon Aug 16, 2010 1:15 pm

hyperlexian wrote:
Wolfpup wrote:
hyperlexian wrote:
i believe there is a reason for this, at least in its subtle permutations (slightly different colours in each eye). i think it has something to do with our binocular vision - if the colours were identical in each eye, we would not see in our usual three dimensions (like 3D glasses). don't remember where i read this.


It's our brain's processing + having two slightly different views that lets us perceive depth.

I'd assume most people see colors in both eyes identically (or close to it) though it makes sense it would be possible for the number or distribution of color receptors in both eyes not to be identical. Interesting too as it lets someone more easily understand how another person might see the world in different colors!

yes, that is the primary way in which we obtain our binocular vision, but i de believe that colour perception helps add depth. it is a phenomenon that has been observed for some length of time, but it is very difficult to quantize each person's variability (the same inherent problem exists in each person describing the way 'red' is perceived, for example).

here is a book from 1957 that refers to the phenomenon of inter-eye colour perception variability:

http://www.jstor.org/pss/1419574


i also found some more information about the potential role of colour in binocular vision, though apparently it is still being debated:
http://jp.physoc.org/content/567/2/665.full


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katzefrau
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Mon Aug 16, 2010 6:35 pm

Daftwrist wrote:
Yes I noticed this a while ago, but then I realised that it's probably because each eye is getting a different level of light exposure due to your position. So when you shut the one with more light you see more blue/green, and when you shut the eye that was getting more shadow / darkness, you see more orange/yellow (or the reverse I don't remember). If both eyes are getting the same light exposure (you are sitting directly in front of a light or out on a bright sunny day not in the shade), both eyes will see colours about equal.


that makes sense.

i too have noticed the color discrepancy but right now colors look the same thru both eyes. so maybe we're just more inclined to notice the difference when it's there.

off topic but do most people see air molecules?? i have no idea what's normal anymore.


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Mon Aug 16, 2010 6:46 pm

I've noticed that, with my own eyes. I see warm colours, better with my left eye, and cool colours better, with my right eye.


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anthonylee
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Tue Aug 17, 2010 12:53 am

I see slightly differnt colors in each eye , but it is very subtle. It is more noticable when the lighting is not the same on each side of me and what colors I'm looking at. I tend to see things a little less red in my left eye than my right eye. I found out that though I'm not colorblind , I have poor color discrimiation and am some what insensitive to red. My eyes are equal otherwise in strenth except for differing astigmatisms. I have no dominant eye! As for being considered normal in percieving colors there is a a lot of difference between having poor color perception and perfect color perception! I have read of cases, though rare of people who were color blind in one eye and normal in the other eye.



pinkythealien
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Sun Mar 18, 2012 7:56 pm

I also have this, very very slightly. I assumed it was a minor thing but also didn't know if anyone else had it, and had never heard anyone else mention it till now. Yay for the Internets!
I have actually noticed that I get a more pronounced effect when I am taking cough suppresant or an antihistamine. I wonder if the meds are affecting the superior colliculi on the brain stem, along with the nose and throat controls? (This is the kind of thing I tend to obsess about.)



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