Your old Uncle Dave isn’t color blind, but I discovered that my eyes don’t see colors the way they did when I was young. I had cataract surgery in my left eye last year (lens removed and replaced by a synthetic lens in a less than 5 minute operation) and immediately noted that my old right eye saw everything with a brownish tinge, the result of sun, age, etc on the lens. Everything looks more brightly colored in the left.
How I (color blind person) see the world!
A lot of people were asking me “so, what do you see!!”. This post is to make you understand what exactly I see. Well, after 27 years I discovered that I see the world in a different way than others, and I am a successful web designer, my color schemes are always bright and nice (what people say to me)
I was asking myself, do the green fields which i love look red to normal people?! do normal people see orange like my blue?! when you are born your parents teach you colors, they point to that box and tell you “this is green” they point to this red circle and say “this is red”. To them it is green box and red circle but they don’t know how you see it! you might see that red circle as what they see blue! so you will point to every blue color you see and say RED (they told you it is red), which they actually see as red! so they won’t tell you, you are wrong!
Here’s more info on the subject of color blindness.
5% to 8% (depending on the study you quote) of the men and 0.5% of the women of the world are born colorblind. That’s as high as one out of twelve men and one out of two hundred women.
Whoa Uncle Dave. That cataract surgery is some serious stuff. I’ve been told that my lenses too are discolored. Astronomy’s tough enough with these old eyes. Good luck to you !!
My vision in that I had been getting blurrier for the past year before I went to the eye doctor who diagnosed a cataract. It was another 8 months before it got bad enough that I decided to have the surgery. Tiny incision next to the lens, ultrasonic probe inserted that pulverizes the lens which is then sucked out, then the new lens is inserted. The next morning things were still a bit blurry, but the following morning, I could see better than I ever could out of that eye. And that’s when I switched between eyes and noticed the color difference.
Can’t you just operate the other eye too and benefit from rejuvenated eyesight?
Biologically. Women have two of the genes resonsible for colour recognition, men only have one. This explains much.
On another colour matter, I have the official postal rate leaflet for the Royal Mail. It tells me that ‘…the colour Red…(is a ) trademark of the Royal Mail Group plc 2007.
Might mean that when you cut yourself shaving and stain your bathroom towel you are misusing a colour over which the Royal Mail Group holds a registered trademark. By the way, they also say on the front of said document “with us it’s personal” Don’t you have gentlemen in dark suits and bulging armpits over there who hold similar views?
Happy to post the original to you – only I don’t have any address
#2, Uncle Dave, strangely enough, I have a noticeable difference in color vision between my two eyes, so I’ll bet I’ll be having that same surgery done in a year or three. Did you notice that difference before the new lens?
All, find a colorful poster in sunlight, and close one eye at a time. Notice any difference in brightness, reds, blues, greens, yellows? For me, it’s blues and greens. Feedback would be helpful to me. Thanks.
The difference in color is slight and occurred over 50+ years. Not worth having the surgery just for that. I had no idea (from experience or ever having read about it) beforehand that the color had changed.
I do have a cataract growing in the other eye, but it’s doing so very slowly and no noticeable blurring yet, but eventually I’ll probably have to have it done.
#4: actually, the gene locus for the gene in question is on the X chromosome, which is why colour blindness (or rather red/green blindness) is much more common in men than in women: for men, a single false gene is enough to create the problem, women need two false ones, as otherwise the allele on the same locus on the 2nd X will be expressed.
Interestingly, colour vision in mammals is rather bad anyway. Most reptiles can actually see four colour “channels”. Most mammals can only see red and green (I think). Only primates and one other south american monkey have re-developed cells for blue, probably by duplicating the gene for one of the other colours.
pj
Uncle Dave, my experience was similar to yours.
I had both eyes done a few months ago(two weeks apart) and my first reaction was that it was too bright, meaning too much light. I soon realized that was not the case but colors were brighter..This is not a great description but I think you get the idea.
I was born the year FDR was first elected President.
#7, yes, color blindness is sex-linked; so if men are color blind, it’s the damned woman’s fault. 😛
A better term for color blindness is color deficiency.
Missing one of the 3 photoreceptor color pigments still results in color perception but it won’t be as vivid. Some color confusions can occur. This is especially so with the most common x-linked red/green color deficiency which is a recessive trait usually.
Having just one cone color photoreceptor pigment (cone monochromacy) is relatively rare but would result in a person not being able to distinguish between the hues of colors.
I remember those little circles with the numbers in them, I had to read the numbers in them for DOT physicals. They don’t use them any more, either they were failing too many people or the methodology was flawed. In any case, a nurse I knew wrote the numbers down, they never changed them, so it was no big deal.
i feel you i beleive i am color blind as well (or to som extent)