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Partial Color Blindness

Discussion in 'Physical & Sexual Health' started by Perrygay, Dec 6, 2007.

  1. Perrygay

    Perrygay Guest

    I'm not fully color blind, but I have a hard time distinguishing between certain colors when they're put together. So last week my science class was testing the pH levels of a few different substances, and I was absent. And whenever you're absent for a lab you have to come after school to make it up, so I did. But my teacher is on an extended leave of absense and the sub refused to help me when I asked her for help determining the colors. So, I got the lab back graded today and I got a 50.

    So tomorrow I have to go and see a counselor about it, because I don't think that's really fair. But I was just curious if anyone knew if color blindness is something that gets progressively worse over time? My doctors have always told me it doesn't happen, but it just seems like it gets worse and worse every year.
     
  2. 24601

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    Colorblindness is entirely genetic. Well, I guess I shouldn't say entirely, but in most cases it's in your genes. So, from that respect, it's not really. But, as your eyes get weaker, maybe it seems to worsen, I'm not sure.

    I would assume you're Red-Green colorblind since that's the most common by far. I don't know how much you know already, but R/G colorblindness is something more common in men, since it's a disorder of the X chromosome (meaning, for females to get it, they need to have 2 defective chromosomes). In general, colorblindness is caused by mutations of (or in the more rarer forms, complete lack of) the cone and rod color receptors in the eye. There are 3 of each, capable of covering most of the visible spectrum, although they are generally called red, green, and blue. The most common form of colorblindness (the R/G type that I've been talking about) is caused by an alteration of the medium wavelength receptors, making them less sensitive to green light and more sensitive to red light, so that green sometimes appears black, and that it is sometimes hard to distinguish between colors of that region of the spectrum (red, orange, yellow, green). There are many other much more rare forms of colorblindness, too, and it can be acquired in rare cases by damage to the eye or other things. However, when it's genetic, I don't see how it's possible for it to get worse... although it might be, I dunno.

    I did a big research report on this at one point in time, so... that's why I like talking about it, :lol: If you're not R/G colorblind then you can google colorblindness and come up with tests to figure out which type you are (some others are no being able to see colors at all, having mutated blue receptors, red receptors, lack of one type of cone, etc.).

    As for your lab thing, that really isn't fair. When will the teacher be back? I'm sure a counselor will be able to help you out.
     
  3. Perrygay

    Perrygay Guest

    I already know what kind of color blindness I have, I've been to the doctor about it. I have tritanomaly, I think that's how it's spelled. It's not Red-Green, it's blue. Supposedly, it's pretty rare but my doctors said they've seen it a few times. I have a hard time with blue on blue, but especially purple. I can't see that color at all, it just comes out as black for me, and it's the same for darker shades of blue. And I have problems with seeing red too when it's with other colors, but by itself against a white background I have no trouble.

    Oh, and I'm on block schedule (a lot of schools in Georgia are for some reason) and I won't have her for the rest of the course, so I'm stuck with this lady.
     
    #3 Perrygay, Dec 6, 2007
    Last edited by a moderator: Dec 6, 2007
  4. Steam Giant

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    That's almost exactly what I have, or as close to what I have that I've heard of someone else also having. And for me, it hasn't gotten better or worse, it's just stayed the same.

    Colorblindness isn't always genetic, but unless you're one of the few exceptions, it is.

    I found that most teachers in my schools were very uncomprimising when it came to my colorblindness, particularly because it's of a rare variety. I'd tell them I was colorblind, and they're generally like, "well, this is purple, not red or green." I'll inform them, "I'm not red-green colorblind." They get this utterly confused look on their face like I've just admitted to being born on Jupiter. By the time I actually get around to explaining it to them, they likely think I'm making it up to get out of work, or maybe for attention. "How can you be color blind and still see all of the colors?" :eusa_doh: :bang:

    I hope nobody's been teasing you about it ; ; I get a LOT of that. Or, people constantly pointing to something and saying, "what color is this?" >.< I absolutely HATE that!
     
  5. Perrygay

    Perrygay Guest

    You're the first person I've heard of having a similar problem as I do, too. Yes, it's extremely annoying when teachers won't believe it. But what else can I tell them? I just absolutely cannot distinguish between purple/blue/black or when red is mixed with anything. Which is why I screwed up the pH readings on that lab.

    People don't make fun of me, but they do ask what's this color? a lot. They can't understand that I can see the colors (except purple) when they're by themselves, but not see certain colors when they're with other colors. Unless you have it I guess it's really hard to understand.
     
  6. Urman

    Urman Guest

    Im sorry to hear that but you should diffidently talk to your guidance counselor because it is not far to you maybe there is a alternative or something that can be worked out.
     
  7. SkyTears

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    That's like my grandpa. People are always asking how he can tell the difference on the R/G street lights and I just look at them because I think it is the stupidest question. XP
     
  8. Miaplacidus

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    I knew a girl which was nearly fully color-blind - she basically saw in black and white. She sat near me in drawing class and she always asked me to pick the right colors when she had to, because she couldn't.

    Indeed, in chemistry being color-blind can be a problem, especially with indicators... but it's really unfair for you if they didn't help you if they knew you had that problem. You should complain in my opinion.

    As far as I know I'm not color-blind, although I have trouble with a specific shade of gray which I see as green. I have a hoodie which is of that color; my mother always referred to it as "the gray one", and for me it was always green. A grayish green, yes, but green. Maybe I should upload a picture of it and ask whether it's green or gray...
     
  9. Bromptonrocks

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    Colour blindness comes in varying degrees. By far the most common is Red/Green although there are others. It's hereditary and vary rare in girls although they can carry the gene. It's always your maternal grandfather who passes the gene on to his daughters who in turn pass it on to their sons. In other words, my mum's dad passed the gene on to me via my mum. There was then a 50/50 chance that I would be colour blind. In turn, if my daughters have sons, there will be a similar chance that they will be colour blind.

    The degree of colour blindness is fixed and does not get worse.

    You can get yourself tested and your degree of colour blindness assessed. Do some searching around the Internet. In the UK, Universities specialising in vision tend to offer extensive testing for a small fee. They then produce a 20 page report!!!


    Allowance should be made in your case, Perrygay, as the way you were treated is totally unfair. Although, not probably seen by you as a handicap, I'm sure allowance would have been made for students with different sorts of handicaps.

    Good luck

    :icon_bigg
     
  10. Kimi

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    From what I know, it won't get worse.

    I had a friend who is color blind. He can pretty much tell every color but he found some pale colors are hard to see. And he also said that it won't get any worse.

    So I think it won't!! Like your doctor said:slight_smile:

    As far as the lab...yeah, talk to the counselor she or he have to do something I guess. Hope everything works out well for you(*hug*)
     
  11. Ty

    Ty Guest

    My friends fully colour blind and it stays the same with him.